SemiAnalysis's Patel Sees AI Inference Rivals Global Commodities Market

Why Hardware-Software Co-Design Is AI's Real 100x: Dylan Patel of SemiAnalysis — Sequoia Capital

Sequoia Capital

Co-designing models, software, and silicon together delivers up to a 100-fold increase in AI efficiency compared to hardware upgrades alone, driving inference costs down by 60x annually.

AI-assisted summary of Why Hardware-Software Co-Design Is AI's Real 100x: Dylan Patel of SemiAnalysis — original source. Check the original for full context.

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Detailed notes

## Background Published by Sequoia Capital on RSS / web on June 30, 2026, and hosted by Shaun Maguire and Sonya Huang, this episode features Dylan Patel, founder of SemiAnalysis. The discussion covers how hardware-software co-design drives a 100x improvement in AI performance, the shift from CUDA to model-level optimizations, and the economic scale of AI inference.

## TL;DR Dylan Patel breaks down why the biggest gains in AI efficiency stem from co-designing models, software kernels, and silicon together rather than relying solely on faster hardware. He examines the hardware splits between Nvidia GPUs, Google TPUs, and specialized ASICs, explaining how model architectures like DeepSeek, OpenAI, and Anthropic are shaped around specific hardware constraints. Patel also explores the economics of living benchmarks like InferenceX, data center power bottlenecks, the rise of Neoclouds, and Jensen Huang's strategy to maintain a multipolar hardware ecosystem.

## Atmosphere & style The conversation is fast-paced, highly technical, and packed with deep industry insider knowledge, blending quantitative rigor with an informal, candid tone. Dylan Patel speaks with sharp confidence and intellectual energy, drawing on his unique path from forum moderator and small-business operator to top semiconductor analyst. The dynamic between Patel and the Sequoia hosts feels like an energetic whiteboard session among peer experts, moving effortlessly between high-level economic forecasts, low-level chip topography, and entertaining historical anecdotes.

## Key takeaways - `00:00` SemiAnalysis built its unique edge by combining deep semiconductor supply chain engineering expertise with rigorous hedge fund financial analysis. - `10:00` The market for AI inference will eventually rival or exceed major global commodities, accounting for multiple percentage points of world GDP. - `15:00` AI benchmarking requires living systems like InferenceX because constant software and model updates drive down cost for equivalent quality at roughly 60x annually. - `18:15` Hardware, model architecture, and infrastructure decisions are strictly downstream of the trade-off between interactivity latency and system token throughput. - `20:15` By 2030, OpenAI and Anthropic will consume over 100 gigawatts of power, and while space-based compute will remain under 1% initially, land constraints will push orbital compute to over 50% of incremental expansion by 2040. - `23:45` The true 100x efficiency gains in AI come from software-hardware co-design—simultaneously tuning model architectures, kernels, and silicon together rather than in isolated silos. - `28:15` Physical memory limits are the ultimate technological bottleneck, as basic DRAM and NAND flash cell architectures have remained fundamentally unchanged for decades while compute density scales rapidly. - `30:00` Modern silicon power density is approaching 1,400W to 4,000W, forcing engineers to adopt pragmatic infrastructure workarounds like converted natural gas truck engines for on-site power. - `33:00` Nvidia GPUs and Google TPUs represent a fundamental co-design split: OpenAI's sparser architectures lean toward GPUs, whereas Anthropic and Google co-design denser models around TPU topologies. - `36:00` The so-called CUDA moat has largely unraveled due to AI-assisted coding, but Nvidia retains lock-in because open-source models are explicitly co-designed around Nvidia hardware dimensions. - `47:00` Hyper-specialized custom ASICs risk getting trapped in local minima and becoming obsolete if fundamental model paradigms shift, maintaining a permanent market for general-purpose compute. - `51:00` The global compute crunch persists because new frontier models expand the economic TAM of useful tasks faster than physical silicon supply can double or triple. - `54:00` Not all data center capacity is equal: pricing, yields, and hardware utility vary drastically based on power smoothing, optical switching, and execution capabilities. - `01:05:00` Traditional hyperscaler architectures were optimized for CPU-based isolation, creating an opportunity for hyper-leveraged neoclouds to move faster on massive GPU clusters. - `01:05:00` Jensen Huang strategically allocates GPUs and balance sheet support to neoclouds and independent labs to cultivate a multipolar world and prevent hyperscaler monopsony.

## Detailed walkthrough ### `00:00` Internal Culture, Background, and the First "Neural Network"

SemiAnalysis maintains a uniquely dynamic internal culture split between heavy technical experts across the semiconductor supply chain and former hedge fund professionals. This structure frequently creates lively internal debates where financial analysts argue over costs while engineers push for the most exciting technologies. The firm operates with an informal atmosphere heavily influenced by founder Dylan Patel’s background as a former internet forum moderator.

Patel's early life was rooted in small family businesses, growing up in and living at a family-run motel, which later expanded to include a gas station across the street. Lacking the height to reach cigarettes kept above the counter, Patel learned to anticipate customer orders visually as they walked through the door. By observing demographics—such as age, race, and style—he would pre-position a step stool next to the correct brand (like Camels or menthols) before the customer even asked. Patel lightheartedly calls this practical pattern-recognition task the first "neural network" he ever trained.

His introduction to computer hardware occurred following his eighth birthday. After asking for an Xbox 360 for Christmas months in advance, the console suffered from the infamous "Red Ring of Death" hardware defect shortly before his cousin visited. Determined to fix it, Patel disassembled the console and bypassed the issue by shorting its temperature sensor. By age 12, he was deeply immersed in tech communities, eventually moderating major forums across platforms like Reddit covering Android, Apple, Google, Intel, NVIDIA, and AMD.

- Patel monitored the architectural evolution of smartphones as they rapidly surpassed PCs in technological complexity. - His small-business background gave him an economic perspective, leading him to analyze financial metrics alongside technical specs. - While internet users often favored AMD GPUs for price-to-performance, Patel argued NVIDIA was superior due to smaller chip sizes, better power efficiency, higher performance, and stronger profit margins.

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`05:00` Early Career, Loss, and the Launch of SemiAnalysis

Beyond his early interest in hardware, Patel was a competitive StarCraft player, reaching the Grandmaster rank on the North American ladder. After completing university degrees outside the semiconductor field, he worked for two years as a quantitative risk analyst. During this time, he identified and exploited a market risk discrepancy that generated over $10 million in risk-free revenue for his firm. However, after a colleague claimed credit for the work and he was denied his bonus, Patel lost trust in the company's social contract.

A series of personal hardships followed in early 2020: his grandmother, who had lived with his family in the motel, developed dementia and passed away after a tragic fall, alongside other personal setbacks. When COVID-19 lockdowns hit, Patel moved in with his brother in Nashville. During the lockdown, he traded stocks heavily—profiting from short and long positions around the pandemic—and posted extensively online about the emerging semiconductor shortages.

After getting doxed by an online opponent who revealed his real identity, Patel initially paused posting for three weeks. Realizing he had no reason to hide, he shifted from anonymous forum posts to writing in-depth, long-form content under his real name. On his 24th birthday, he launched the SemiAnalysis blog with two comprehensive essays. The detailed nature of these posts rapidly drew industry attention and inbound consulting inquiries. Patel then packed his belongings into a truck with a bed-tent and air mattress, spending six months traveling across American national parks—living out of cheap $30-a-night motels during the week to write analysis, and listening to technical audiobooks and reading textbooks while hiking on weekends.

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`10:00` Supply Chain Conferences and the Scale of AI Inference

From late 2020 through 2024, Patel maintained a mobile lifestyle, attending over 40 industry conferences globally every year to cover every node of the supply chain. He noted a sharp contrast between AI conferences like NeurIPS—which feature younger researchers and fast-moving software paradigms—and deeply technical hardware events. Because the semiconductor industry skew older, veteran experts were often eager to share detailed knowledge with a younger, enthusiastic analyst.

Specific specialized conferences, such as SPIE Advanced Lithography and SPIE Photomask, require years of immersion to fully comprehend due to their extreme technical depth. Patel built an extensive network across chemical suppliers, toolmakers, and fabrication plants, uncovering hidden supply chain bottlenecks and single-point-of-failure vulnerabilities that are never published publicly.

Looking toward the future of computing, Patel views the production and utilization of AI tokens as one of the largest future economic drivers globally. He projects that the market for AI inference will eventually rival or exceed major traditional global commodities, accounting for multiple percentage points of world GDP.

- Patel recalled an anecdote from a Japanese chemical conference where a veteran worker described a single factory fire in the 1980s that destroyed the world's sole supply of a key chemical, causing global memory prices to double or triple overnight. - Deep technical events like IEEE and SPIE offer insights into niche supply chain dependencies, such as precise tool chemical consumption and sole-source material providers. - SemiAnalysis developed **InferenceX** as an industry benchmark to evaluate real-world AI inference performance and cost metrics across diverse hardware platforms.

Here is a detailed, faithful walkthrough of this section of the interview with Dylan Patel.

---

`15:00` The Genesis of InferenceX and Living Benchmarks

Dylan Patel explains that SemiAnalysis initially tackled hardware testing by figuring out how to run benchmark suites and then publishing the results publicly to scale their research. While point-in-time benchmarks work for static systems, traditional testing falls short for AI because inference models, frameworks, and low-level software evolve almost daily. Software libraries like PyTorch, vLLM, and SGLang update roughly twice a week, and new models (such as Mythos 5 or Fable) release constantly. These rapid software optimizations and driver updates drive down model costs for equivalent quality at a rate of roughly **60x per year**. To capture this moving target, benchmarking must be a "living, breathing" system continuously executing on the latest silicon and models.

To build **InferenceX**, SemiAnalysis leveraged its industry reputation to rally broad ecosystem support. Cloud providers and hyperscalers—including CoreWeave, Crusoe, Nebius, Oracle, Microsoft, Amazon, Google, and OpenAI—donated compute, while open-source software teams and specialized startups (such as SGLang, vLLM, Radix Arc, and Infraact) collaborated on runtime integration. Hardware vendors like Nvidia, AMD, Google, and Amazon contributed access to their latest processors.

``` Ecosystem Support ($50M+ Donated Hardware) ├── Cloud / Hyperscalers: CoreWeave, Crusoe, Nebius, Oracle, MSFT, AWS, Google, OpenAI ├── Open-Source Software: SGLang, vLLM, Radix Arc, Infraact └── Hardware Vendors: Nvidia, AMD, Google (TPUs), Amazon (Trainium) ```

The benchmark suite runs automated, daily tests across over **$50 million in donated hardware** (projected to pass **$100 million** with the addition of TPUs and AWS Trainium chips), spanning approximately **15 distinct chip architectures**.

- **Daily Model Coverage:** Runs tests on top Chinese models (from Moonshot, Alibaba, and four other major Chinese labs) alongside leading US open-source models like GPT-LSS and Nemotron. - **Config & Optimization Sweeps:** Evaluates across vast matrix configurations to avoid flawed comparisons (such as pitting one vendor's unoptimized setup against another's tuned configuration). - **Open-Source Artifacts:** InferenceX publishes all raw results alongside reproducible container images for optimal operating points.

`18:15` Navigating the Throughput vs. Interactivity Pareto Curve

Patel highlights that nearly all decisions across hardware, infrastructure, model design, and application layers are downstream of the **throughput vs. interactivity (latency) curve**. Today's infrastructure often treats AI workloads with a "one-size-fits-all" approach, but optimal deployment depends heavily on where a workload falls along this curve:

1. **High Interactivity / Low Latency:** Required for real-time user experiences (e.g., Anthropic's Claude Code Fast Mode or OpenAI's priority queue). Uses low batch sizes and aggressive acceleration techniques like speculative decoding or multi-token prediction. 2. **High Throughput / Batch Processing:** Used for offline document processing or background jobs. Maximizes batch sizes to saturate hardware, trading individual user latency for maximum cost efficiency.

``` HIGH INTERACTIVITY HIGH THROUGHPUT (Low Latency / High Cost) (High Latency / Low Cost) ┌──────────────────────────────┐ ┌──────────────────────────────┐ │ • Low batch sizes │ │ • High batch sizes │ │ • Speculative decoding │ ──► │ • Maximum hardware usage │ │ • Multi-token prediction │ │ • Document processing jobs │ │ • e.g., 250-500 tokens/sec │ │ • e.g., 1,000+ tokens/sec │ └──────────────────────────────┘ └──────────────────────────────┘ ```

When host Shaun Maguire asks how cost factors into this, Patel breaks down a concrete numerical example:

- **Batch Size 100:** Yields 10 tokens per second per user, generating a total system throughput of **1,000 tokens/sec** on a single piece of compute. - **Batch Size 1:** Yields **250 to 500 tokens/sec** for a single user, but total system output drops to 250 tokens/sec. - **Cost Differential:** Choosing the batch-optimized setup delivers a **4x cost decrease** for the exact same unit of hardware. However, power users or time-sensitive feedback loops often justify paying 4x more per token to eliminate latency.

`20:15` Terawatts in Orbit: Forecasting Compute Scaling to 2040

When asked to forecast the share of inference compute running in space over a 10- to 20-year horizon, Patel outlines a stark contrast between short-term land constraints and long-term orbital infrastructure. While expressing strong admiration for SpaceX (joking that he would instantly buy their IPO stock, clarifying it is "not investment advice"), he argues that space-based data centers will remain negligible in the immediate future due to launch costs and terrestrial power availability.

``` TERRESTRIAL VS. SPACE COMPUTE EXPANSION

2030 Horizon 2040 Horizon ┌─────────────────────────────────┐ ┌─────────────────────────────────┐ │ Combined OpenAI + Anthropic: │ │ Global Scale: │ │ > 100 GW power demand │ │ Terawatts of inference compute │ │ │ │ │ │ Space Compute Share: │ │ Space Compute Share: │ │ < 1% total capacity │ │ > 50% of incremental additions │ └─────────────────────────────────┘ └─────────────────────────────────┘ ```

Patel projects that power demands for inference will grow exponentially on Earth:

- **2030 Power Horizon:** OpenAI and Anthropic alone will consume over **100 gigawatts (GW)** of power combined, with Hyperscalers like Meta and Google adding substantially more. Space compute will account for **less than 1%** of total capacity. - **2040 Power Horizon:** Total global inference capacity will scale into **terawatts (TW)**. At that point, land acquisition, terrestrial grid constraints, and power generation bottlenecks on Earth will flip the economics, causing **more than 50% of incremental compute additions** to be deployed in space.

`22:15` Intelligence Per Watt vs. Human Biology

The conversation shifts to measuring "intelligence per watt" and "intelligence per dollar." Patel acknowledges that specialized silicon—like a 30-year-old TI-84 calculator—delivers exponentially higher intelligence per watt for basic arithmetic than a human brain, though general intelligence remains a vastly different challenge.

Using power meters and cost tracking on InferenceX hardware, SemiAnalysis tracks both efficiency vectors:

- **Historical Efficiency Gains:** While model cost per quality unit dropped **60x annually**, intelligence per watt improved by roughly **40x per year** (as some gains come from non-power algorithmic optimizations). - **The Human Brain Gap:** AI hardware remains **many orders of magnitude less efficient** than human biology. - **The Practical Trade-off:** Patel notes that bridging this gap is not strictly necessary to scale AI. Unlike human brains—which suffer from sickness, disease, specific food preferences, and the need for sleep—silicon clusters can be directly continuously powered at gigawatt scales.

`23:45` The Myth of Isolated Layers: Software-Hardware Co-Design

Shaun Maguire poses a thesis: over the past three years, most performance improvements came from hardware leaps and model-level algorithmic changes, leaving little remaining headroom in low-level kernel optimizations. Dylan Patel strongly disagrees, arguing that treating hardware, software kernels, and model architectures as isolated silos misses where the primary gains occur.

``` ┌─────────────────────────────────────────────────────────────────┐ │ MODEL ARCHITECTURE LAYER │ │ (Shapes, MoE expert sizes, active parameters) │ └────────────────────────────────┬────────────────────────────────┘ │ CO-DESIGN INTEGRATION (Multiplicative Gains ~100x vs 8x) │ ┌────────────────────────────────┴────────────────────────────────┐ │ SOFTWARE & KERNEL INFRASTRUCTURE │ │ (Memory routing, collectives, attention intensity) │ ├─────────────────────────────────────────────────────────────────┤ │ SILICON & HARDWARE LAYER │ │ (Nvidia Hopper/Blackwell, Google TPUs) │ └─────────────────────────────────────────────────────────────────┘ ```

Between Nvidia's Hopper and Blackwell generations, hardware improvements alone delivered roughly a 30x gain on optimized deployments (such as DeepSeek). However, the overall performance jump was vastly larger because the model architecture and underlying kernels were explicitly shaped around specific silicon quirks:

- **DeepSeek Co-Design:** DeepSeek V3 and V4 achieved massive efficiency breakthroughs because the shapes of their Mixture-of-Experts (MoE) layers, memory bandwidth routing, network I/O, collectives, and arithmetic intensity were tailored specifically for Hopper and Blackwell architectures (and Huawei silicon). - **Hardware Mismatches:** Despite Google's TPUs being exceptional chips for pre-training Anthropic and running DeepMind workloads, they struggle significantly to run DeepSeek effectively because DeepSeek's expert shapes were built around Nvidia's architecture. - **Lab-Specific Silos:** Anthropic trains heavily on TPUs but inferences largely on AWS Trainium and GPUs. OpenAI transitioned its model designs from Hopper-optimized shapes (e.g., GPT-4o, which features sparse expert dimensions similar to DeepSeek V3) to Blackwell-optimized configurations. Meanwhile, Google's Gemini 2 and Gemini 3 were co-designed specifically around TPU v6e and TPU v7. - **The Co-Design Multiplier:** Combining independent 2x gains at the hardware, software, and model layers sequentially yields an 8x boost ($2 \times 2 \times 2$). Co-designing all three layers simultaneously yields up to a **100x overall performance jump**.

Patel highlights that this deep co-design philosophy mirrors top-tier hardware companies. Nvidia co-designs from model architecture all the way down to silicon, while TSMC co-designs raw manufacturing processes, tools, and consumables directly with customer chip designs.

`28:15` Memory Bottlenecks and Cell Architecture Limits

When asked to identify the most critical technological bottleneck facing the industry over the next year (excluding supply chain or raw scaling limits), Patel points directly to physical memory limitations.

- **Slow Capacity and Bandwidth Scaling:** Memory capacity and bandwidth improvements have lagged far behind compute density scaling. - **Stagnant Fundamental Physics:** The core NAND flash cell was invented 25 years ago, and the standard DRAM cell was invented over 40 years ago. Despite process node shrinks, there has been no fundamental architectural redesign of the underlying storage and memory cell mechanisms to keep pace with modern AI bandwidth demands.

<FollowUp label="Want to dive into how Dylan Patel compares OpenAI's sparse models to Anthropic's dense ones?" query="How do OpenAI's sparse model architectures compare to Anthropic's dense models in terms of hardware requirements and inference costs?"/>

Here is a detailed walkthrough of this portion of the transcript, capturing the facts, arguments, nuances, and banter.

---

`30:00` Memory Bandwidth, Power Density Limits, and Power Solutions

Hardware innovation over the last five years has largely focused on making HBM (High Bandwidth Memory) stacks faster. However, upcoming architectures will shift toward stacking memory directly on top of the processor chip rather than side-by-side, causing memory bandwidth to explode. Beyond memory, data center and desktop chips have hit a two-decade-long power density wall: historically, power consumption can be reliably predicted at roughly $1\text{ W/mm}^2$. Modern silicon like Nvidia's current architectures and Google's TPUs are approaching 1,400 watts, with Nvidia's upcoming Rubin generation targeting 2,000 watts and Rubin Ultra projected around 4,000 watts.

To bypass the limits of expanding silicon area, emerging engineering designs are pushing power delivery beyond the $1\text{ W/mm}^2$ threshold. While driving more power into smaller silicon areas reduces overall silicon footprint, it presents significant thermal and electrical interference challenges. Meanwhile, on the data center infrastructure side, power constraints can be addressed through pragmatic workaround engineering:

* **Converted Truck Engines:** Millions of mass-produced US diesel truck engines can be converted to natural gas on assembly lines and back-driven through electrical motors to generate electricity on-site. * **Labor Force Utilization:** Instead of waiting for specialized power grid buildouts, auto mechanics can be hired from local repair shops to maintain and service these engine fleets on data center grounds. * **Historical Context:** Western focus shifted away from hardware innovation toward software and ad sales over the last two decades, leaving simple physical engineering solutions underutilized until recent compute demands forced new approaches.

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`33:00` Nvidia GPUs vs. Google TPUs: The Hardware-Software Co-Design Split

The debate over Nvidia GPUs versus Google TPUs comes down to hardware-software co-design rather than simple superior specs. Estimates project Google producing over 10 million TPUs annually while Nvidia produces tens of millions of GPUs, creating multi-billion-dollar hardware pipelines for both ecosystems. While Nvidia relies on NVLink switches and general-purpose programmability, Google leverages custom Inter-Chip Connect (ICI) networking that connects up to 8,000 chips without traditional switches, albeit requiring data to pass through intermediate chips.

``` +-------------------------------------------------------------------+ | HARDWARE & ARCHITECTURE SPLIT | +------------------------------------+------------------------------+ | Nvidia Ecosystem | Google TPU Ecosystem | +------------------------------------+------------------------------+ | • NVLink switches (up to 72 GPUs) | • Direct ICI (8,000+ chips) | | • General-purpose programmability | • Optimized for dense matrix | | • Open-source GPU model focus | • Energy-efficient topology | | • OpenAI / Sparser architectures | • Anthropic / Dense models | +------------------------------------+------------------------------+ ```

Rather than one platform being objectively superior, key architectural differences direct labs toward specific hardware: * **Matrix Multiply Units & Attention:** Differences in matrix multiply unit shapes, attention mechanisms, and expert structures dictate which chips run specific models efficiently. * **Model Divergence:** OpenAI's model designs lean significantly more sparse, making them less suitable for TPUs, whereas Anthropic and Google build models that are denser and tailored for TPU clusters.

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`36:00` The "CUDA Moat" Shift and Model Architecture Locks

The classic narrative that Nvidia's software ecosystem and CUDA form an unassailable moat has shifted over recent months. With AI coding assistants (like Claude and Codex) aiding in low-level optimization and only a few dozen major frontier model labs existing globally, labs are willing to write custom kernels for multiple hardware targets.

> "And certainly the CUDA moat and software moat is at least partially disentangled because models are just great at coding and all software gets commoditized in that case."

The true lock-in is not CUDA itself, but rather how open-source models are tailored to specific hardware features: * **Downstream Model Optimization:** Chinese frontier models (such as DeepSeek, Kimi, Zhipu AI, Alibaba, Tencent, and Xiaomi) along with Nvidia's Nemotron are explicitly co-designed and optimized for Nvidia GPU dimensions (such as hidden dimensions and $d_{\text{model}}$ parameters). * **Ecosystem Downstream Effect:** Because open-source weights are tuned for Nvidia silicon, downstream application developers, inference providers, and RL tuning teams default to buying or renting Nvidia GPUs to avoid performance degradation. * **Lab Independence:** Major labs (like OpenAI, which forked PyTorch early on) do not rely on off-the-shelf open-source software stacks; they co-design custom infrastructure directly against their target hardware.

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`38:30` Cerebras, Fast-Mode Inference, and Memory Scaling Limits

Cerebras has carve-outs in high-speed, low-latency inference, particularly for fast-mode applications where rapid token generation is crucial. However, reliance on SRAM-based wafer-scale engines introduces significant architectural tradeoffs:

* **Context Window & Size Bottlenecks:** Ultra-large models (scaling into multi-trillion parameters) combined with long context lengths (e.g., 1 million tokens) struggle to fit onto SRAM-based architectures like Cerebras or Groq without HBM. * **Economic Drivers:** Across commercial usage, the vast majority of lab revenue comes from frontier-tier models rather than smaller, cheaper variants. Even as higher-tier model costs increase, market spending follows raw model quality over token volume.

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`40:30` Semiconductor ROI, Industry Misconceptions, and Long-Term Trends

SemiAnalysis combines heavy engineering expertise with financial analysis to track daily token spend and compute unit economics. Common industry misconceptions include claiming AI lacks return on investment (ROI) or asserting that model capabilities have hit a plateau. Saturation on older benchmarks reflects test ceiling effects rather than a halt in model reasoning capabilities.

Looking toward a 10-year horizon, long-term infrastructure scaling explores frontier concepts like space-based data centers and orbital silicon deployments. However, near-term supply chain shifts—such as timing adjustments in co-packaged optics or critical chemical inputs across the 1,000+ semiconductor manufacturing steps—continue to dictate commercial outcomes.

[045:00] Analog Compute and Naveen Rao’s Long-Term Silicon Bets

The conversation opens with a discussion about long-term bets in hardware innovation, specifically highlighting Naveen Rao's new venture. Dylan Patel notes that Rao understands this is not a quick two- or three-year effort, but a fundamental, long-term bet aiming to innovate across silicon, software abstraction, and model layers simultaneously—including concepts like analog compute paired with energy-based models. While Dylan quips that "it definitely won't work quickly," he respects Rao deeply, recounting how he first met him around 2019/2020 after baiting him on the internet while still posting anonymously, taking the exchange from public replies to DMs to a phone call.

``` Naveen Rao / Mosaic ML / Silicon Strategy ├── Analog Compute & Energy-Based Models (Long-term silicon/software bet) └── Dylan's Early Connection (Baiting Naveen online in 2019/2020 as an anonymous poster) ```

Sonya Huang and Shaun Maguire reflect on Rao’s track record, noting his willingness to help younger generations and identify talent, alongside his forward-thinking work at MosaicML.

* **Naveen Rao's Approach:** Simultaneously redesigning the silicon layer, software abstraction layer, and model architecture (e.g., exploring analog compute and energy-based models). * **Industry Trajectory:** Long-term architecture bets take many years to mature and are unlikely to deliver fast, short-term turnarounds.

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[047:00] End State Ecosystem: Custom ASICs vs. General-Purpose NVIDIA Compute

Addressing the future of hardware, Shaun asks if every hyperscaler and AI lab will eventually rely entirely on custom chips like Trainium or TPUs for inference while using NVIDIA strictly for training. Dylan emphasizes that everyone will try to build custom silicon, driven by supply chain diversification. Currently, most chips look structurally identical—a central logic compute die surrounded by High Bandwidth Memory (HBM), with networking on top and PCIe/IO on the bottom (with niche exceptions like Groq and Cerebras doing "weird shit"). However, as hardware and model architectures diverge, co-design will push various players into different optimizations.

``` +-----------------------------------------------------------------------+ | TYPICAL CHIP TOPOGRAPHY | | | | [ Networking IO ] | | +--------------------------+ | | | | | | [ HBM ] | Logic Compute Die | [ HBM ] | | | | | | +--------------------------+ | | [ PCIe / IO ] | +-----------------------------------------------------------------------+ ```

Dylan warns that specialized ASICs risk getting trapped in "local minima." If a fundamental breakthrough alters the core model architecture—such as replacing the attention mechanism—a hyper-specialized chip becomes obsolete. Because AI labs cannot predict their model architectures even one year out, general-purpose compute will maintain a massive, enduring market. NVIDIA benefits directly from this because its broad customer base continuously feeds diverse architectural requirements into its design pipeline.

* **Hyperscaler TPU Strategy:** Google runs three distinct TPU design programs: one co-designed with Broadcom, one with MediaTek, and a third unannounced architecture that differs radically from the first two. * **Google's GPU Usage:** Despite owning TPUs, Google pays roughly $11 per hour per GPU to xAI for compute access, while certain internal non-Gemini teams (such as specialized science or Waymo projects) selectively utilize GPUs over TPUs. * **Local Minima Risk:** Highly specialized ASICs optimize heavily for current model paradigms but risk obsolescence if architectural paradigms shift rapidly.

---

[051:00] The Compute Crunch, Economic TAM, and Model Improvement Loops

Dylan dismisses the idea that compute build-outs are slowing down, describing an unprecedented, ongoing compute crunch caused by demand outstripping supply. Even accounting for real-world delays in hardware deployment, global data center build-outs are scaling aggressively from 20 gigawatts this year to over 30 gigawatts next year. The crunch persists because new frontier models (like "Mythos 5" or "Fable 5") expand the Total Addressable Market (TAM) of economically valuable work far faster than physical compute can double or quadruple.

> "The model is so much better and it can do so many more tasks that the TAM for it is way larger... The world's compute did not double in that same timeframe, but the demand for useful tasks that can be done by AI has."

``` [ Model Intelligence Step-Function (e.g., Fable/Mythos) ] │ ▼ [ Massive Expansion of Economically Valuable Tasks ] │ ▼ [ Enterprise Demand Outpaces Physical Compute Capacity ] │ ▼ [ Compute Crunch: Higher Token Margins & Sky-High GPU Rental Rates ] ```

This economic expanding envelope allows labs to print massive profits on tokens even while paying premium rates for hardware. Anthropic, for instance, turned net income profitable (excluding stock-based compensation) in Q2, with expectations to be profitable including SBC by Q3. On API pricing for models like Opus, their token gross margins sit above 80%. Because margins are so high, labs can easily afford to rent GPUs at above-market rates from third parties (including renting capacity from SpaceX) while maintaining solid corporate margins.

* **Deployments:** 20 GW expected this year, rising to over 30 GW next year, despite structural supply chain and construction delays. * **Anthropic Financials:** Achieved net income profitability (ex-SBC) in Q2 with >80% gross margins on primary API tokens (though blended corporate margins are slightly lower due to Amazon Bedrock and Google Vertex revenue-share deals). * **Recursive Engineering Loops:** Models are increasingly writing infrastructure code and automating their own deployment, accelerating the release cadence of subsequent models. * **Capital Raises:** To fund massive infrastructure outlays, labs and tech giants are raising immense capital; Larry Page's early $1B investment in SpaceX for a ~10% stake (later diluted to ~5%) stands out as an asset Google can selectively liquidate for capital.

---

[054:00] Data Center Heterogeneity and Hardware Yield Disparities

Sonya brings up concerns around high leverage in data center build-outs, citing news that Crusoe was asked by a customer to halt construction on a facility. Shaun counters with a private equity perspective—noting high leverage with high growth concentrates equity upside—before asking whether data center capacity varies widely in actual performance and yield.

``` DATACENTER VALUE / RENTAL TIERING ┌──────────────────────────────────────────────┐ ├─ NVIDIA GPU Clusters (Standard) │ ~$12M–$13M / GW ├─ High-Demand GPU Deals (e.g., SpaceX/Google) │ ~$25M / GW ├─ Amazon Trainium Capacity (Anthropic/OpenAI) │ <$10M / GW (Floor Mechanism) └──────────────────────────────────────────────┘ ```

Dylan agrees that not all gigawatts are created equal. Enterprise-grade execution, advanced optical switching, power smoothing, and infrastructure quality create drastic differences in pricing and performance across operators. Specialized providers and top hyperscalers derive significantly more utility per megawatt than lower-tier NeoClouds struggling with operational complexities.

* **GPU Rental Valuations:** Standard GPU clusters historically rented for $12 million to $13 million per gigawatt (or $12–$13 per watt). Premium short-term crunch deals, such as Google renting SpaceX's GPU capacity, spiked to nearly $25 million per gigawatt ($25 per megawatt-year). * **Trainium Rental Pricing:** Amazon Trainium capacity rents below $10 million per gigawatt to core partners like Anthropic and OpenAI. * **Contract Structures:** Anthropic's Trainium agreement included a custom floor mechanism: if performance fell short, rates adjusted lower with cancellation options, but as performance proved exceptionally strong, pricing scaled upward. * **Infrastructure Disparities:** The divide between top-tier data center builders and inexperienced operators is widening, leading to customer cancellations and stalled construction for lower-efficiency facilities.

<ElicitationsGroup message="Explore related hardware and model strategy topics:"> <Elicitation label="Examine the software & hardware architecture of Amazon Trainium" query="Break down the hardware and software architecture of Amazon Trainium chips and how Anthropic optimizes for them."/> <Elicitation label="Compare local vs. global minima in custom AI silicon designs" query="Explain how custom AI ASICs get trapped in local minima when model architectures shift, using technical examples."/> </ElicitationsGroup>

Here is a detailed, faithful walkthrough of the provided transcript segment:

`01:00:00` Data Center Economics, Power Management, and Compute ROI

The discussion opens with an analysis of data center co-location dynamics, specifically focusing on buying raw power rather than pre-installed compute. Power pricing in co-location facilities traditionally hovered around $60 per kilowatt-month, but current transactions range wildly from $120 to $160 per kilowatt-month. Lower-tier data centers in places like India can cost as little as $80 due to grid unreliability and poor internet infrastructure, while higher-risk tiering pushes prices up to $200 per kilowatt-month for customers with weaker credit profiles. In the data center construction market, many projects fail or experience severe delays—often led by inexperienced teams who put money down on turbines without understanding the execution lag. To account for this, SemiAnalysis uses a probability-weighted data center model tracking hardware and equipment across every site globally.

The conversation pivots to how major tech players like Google optimize gigawatt-scale facilities. Instead of suffering from typical data center power utilization rates (where hardware draws only 60% to 70% of peak allocated power), Google fits over a gigawatt of actual hardware into a one-gigawatt envelope by dynamically shifting power workloads. Furthermore, hyperscalers negotiate specialized utility contracts: if a power grid can handle two gigawatts for 362 days a year but only one gigawatt for three peak days, operators will negotiate for two gigawatts with an agreement to shed load or turn off when prompted. Utilizing on-site gas generators, battery storage, and active workload management allows operators to sell significantly more effective gigawatts.

At the compute layer, value creation varies depending on who receives the hardware. A gigawatt of compute allocated to Anthropic yields higher revenue than the same power allocated to OpenAI, especially following the impact of release iterations like Claude 3.5 Sonnet. Similarly, if SpaceX received a gigawatt, they would deploy it with exceptional efficiency. SpaceX draws on immense networking expertise from Starlink and power management know-how from Tesla, backed by leaders like Brett Mayo. Additionally, while specialized providers like CoreWeave deliver superior GPU compute performance and reliability over Amazon, Google, or Microsoft, hyperscalers like Google hold a financial advantage: they can pre-sell compute capacity six months before deployment, taking signed customer contracts to debt markets to fund their initial purchase orders (POs).

* Data center co-location power pricing spans $80/kW-month in less reliable grids up to $200/kW-month for lower-credit customers. * Standard data centers run at roughly 60% to 70% power utilization; advanced workload sloshing allows full capacity usage. * Peak-shaving tactics utilize battery storage, natural gas, and site generators to sell higher effective capacity under utility constraint agreements.

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`01:05:00` The Rise of Neoclouds and Nvidia’s Multipolar Strategy

The speakers address why Neoclouds emerged despite historical expectations that traditional hyperscalers would monopolize AI compute. Drawing on a 2023 report titled *Amazon Cloud Crisis*, Dylan explains that traditional cloud architecture was optimized for CPU-based infrastructure. Custom hypervisors like Amazon Nitro NICs provided excellent tenant isolation and cost-efficient CPU/storage scaling, but actively degraded AI performance. Furthermore, AI workloads do not require individual core or single-GPU slicing; customers lease entire 8-GPU servers or full 72-GPU racks under long-term contracts. Traditional hyperscaler custom networking, while superior for legacy enterprise traffic, struggled under heavy AI cluster demands, forcing companies like Microsoft to turn to Neocloud capacity when internal data center expansions fell behind schedule.

``` +-----------------------------------------------------------------------+ | HYPERSCALER vs. NEOCLOUD | +-----------------------------------------------------------------------+ | Traditional Cloud (Hyperscalers) | AI Cloud / Neoclouds | +-------------------------------------+---------------------------------+ | • Optimized for CPU workloads | • Tailored for massive GPU AI | | • Individual core/socket slicing | • Full-rack / multi-rack leases| | • Custom Nitro NICs (Isolation) | • Low-latency raw interconnect | | • Slow, bureaucratic rollouts | • High-leverage, fast execution| +-------------------------------------+---------------------------------+ ```

Time-to-market and financial incentives heavily favor Neocloud execution. Unlike corporate employees at legacy hyperscalers, Neocloud leadership teams—such as Chase and the team at Crusoe—hold hyper-leveraged equity stakes, giving them intense motivation to build out power and hardware faster. Many of these builders originated in the volatile Bitcoin mining industry, bringing fast-paced infrastructure deployment experience to the space.

Overarching this dynamic is Nvidia CEO Jensen Huang’s deliberate strategy to cultivate a "multipolar world." Nvidia actively avoids an ecosystem dominated entirely by a few hyperscalers (Google, Amazon, Microsoft) or top-tier closed model labs (OpenAI, Anthropic). A market dominated exclusively by Google TPUs or Amazon Trainium chips directly threatens Nvidia's market power. To counter this, Jensen leverages capital allocation, balance sheet backing, and GPU allocations to foster Neoclouds (CoreWeave, Crusoe) and independent AI labs. Even as newly formed "NeoLabs" experience management churn, emerging teams like Thinking Machines (Tinker) have rapidly scaled to hundreds of millions of dollars in annualized recurring revenue (ARR) within months. Jensen's long-term strategy ensures a diverse, competitive buyer base for non-proprietary AI hardware. The segment concludes with mutual congratulations on the impact of SemiAnalysis and the dedication required to navigate the AI hardware landscape.

* Legacy hyperscaler features like tenant isolation and hypervisor offloading (e.g., AWS Nitro) created bottlenecks for distributed GPU cluster training. * Crusoe and CoreWeave leveraged crypto-mining operational backgrounds to outpace traditional data center buildout timelines. * Jensen Huang strategically backs alternative cloud providers and independent labs to prevent market consolidation around proprietary silicon like TPUs and Trainium. * Thinking Machines achieved several hundred million dollars in ARR within six months of launch.

## Notable quotes > `36:00` And certainly the CUDA moat and software moat is at least partially disentangled because models are just great at coding and all software gets commoditized in that case. — Dylan Patel

> `51:00` The model is so much better and it can do so many more tasks that the TAM for it is way larger... The world's compute did not double in that same timeframe, but the demand for useful tasks that can be done by AI has. — Dylan Patel

## Mentioned SemiAnalysis, Dylan Patel, Shaun Maguire, Sonya Huang, Sequoia Capital, InferenceX, Nvidia, Hopper, Blackwell, Rubin, AMD, Google, TPU, Gemini, DeepMind, Amazon, AWS, Trainium, OpenAI, Anthropic, Claude, DeepSeek, CoreWeave, Crusoe, Nebius, Oracle, Microsoft, SGLang, vLLM, Radix Arc, Infraact, PyTorch, Meta, SpaceX, TSMC, Cerebras, Groq, Naveen Rao, MosaicML, Broadcom, MediaTek, Waymo, Moonshot, Alibaba, Tencent, Xiaomi, Kimi, Zhipu AI, Thinking Machines, Jensen Huang, Larry Page, Tesla, Starlink, Brett Mayo

[Source](https://pscrb.fm/rss/p/traffic.megaphone.fm/CPUAI5467568199.mp3)

中文简报

SemiAnalysis 的 Patel 认为 AI 推理规模将媲美全球大宗商品市场 相较于单纯的硬件升级,协同设计模型、软件与芯片可将 AI 效率提升高达 100 倍,推动推理成本每年降低 60 倍。 Dylan Patel 深入剖析了为何 AI 效率的最大提升源于模型、软件内核与芯片的协同设计,而非单纯依赖更快的硬件。他探讨了 Nvidia GPU、Google TPU 与专用 ASIC 之间的硬件分化,解释了 DeepSeek、OpenAI 和 Anthropic 等模型架构如何围绕特定硬件限制进行构建。Patel 还分析了 InferenceX 等动态基准测试的经济学原理、数据中心电力瓶颈、Neocloud 的兴起,以及黄仁勋维持多极硬件生态系统的战略。 SemiAnalysis 通过调用超 5000 万美元硬件的动态基准平台 InferenceX 证实,在软硬件底层快速迭代下,同等质量模型的单位推理成本正以每年约 60 倍的速度骤降。 (15:00) AI 真正的 100 倍效率跃升并非来自孤立的芯片升级,而是源于模型架构、底层算子与芯片硬件的软硬件协同设计(Co-Design),如 DeepSeek 针对英伟达 Hopper 架构专家形状所做的专门适配。 (23:45) 预计到 2030 年 OpenAI 与 Anthropic 合计电力需求将突破 100 GW;随着地面土地和电网瓶颈加剧,预计到 2040 年全球超过 50% 的增量算力将转向太空轨道部署。 (20:15) AI 编程能力的普及正在瓦解传统 CUDA 软件护城河,但开源前沿模型普遍针对英伟达 GPU 维度进行深度协同设计,从而在模型架构与下游部署生态层面形成了更强的硬件锁定。 (36:00)

Reading summary

Dylan Patel of SemiAnalysis argues that achieving order-of-magnitude efficiency gains in AI requires holistic hardware-software co-design rather than siloed optimizations. He asserts that the AI hardware landscape is defined by severe physical bottlenecks, diverging architectural choices, and an ongoing compute crunch that reshapes data center economics. Co-Design and the Multiplicative Gains Myth (23:45) Patel disputes the notion that low-level optimization headroom has dried up, contending that hardware, kernels, and model shapes cannot be treated as isolated silos. Combining individual 2x improvements across silicon, software, and model layers sequentially produces an 8x gain, whereas co-designing them concurrently can drive up to a 100x improvement. For instance, DeepSeek V3 and V4 tailored their Mixture-of-Experts (MoE) shapes, memory bandwidth routing, and collectives specifically to Nvidia's Hopper and Blackwell architectures. Conversely, despite their strength in dense workloads, Google TPUs struggle to run DeepSeek efficiently because the model's dimensions are mismatched with TPU execution units. This co-design dynamic also shifts the nature of Nvidia's moat. While coding assistants have partially commoditized software like CUDA, lock-in now persists because open-source models from major Chinese labs and Nvidia's Nemotron are hardcoded around Nvidia GPU dimensions. Downstream developers default to Nvidia hardware to avoid performance degradation. Living Benchmarks and the Interactivity-Throughput Tradeoff (15:00) Traditional static benchmarks fail in AI because rapid updates to libraries like PyTorch, vLLM, and SGLang drop inference costs for equivalent quality by roughly 60x annually, while intelligence per watt improves by about 40x per year. SemiAnalysis established InferenceX as an automated benchmarking system spanning 15 chip architectures and tens of millions of dollars in compute to sweep configurations continuously across leading US and Chinese models. Patel emphasizes that all hardware and infrastructure decisions trace back to the throughput versus interactivity trade-off. Optimizing for high throughput using large batch sizes (such as batch size 100 yielding 1,000 tokens per second total) delivers a 4x cost reduction on the same hardware compared to batch size 1, which tops out at 250 to 500 tokens per second for real-time responsiveness. Power users often pay that 4x premium per token specifically to eliminate latency. Physical Limits, Memory Walls, and Terrestrial Power (28:15) Physical limitations in memory and power delivery represent the most immediate barriers to scaling. NAND flash and DRAM cell designs have seen no fundamental architectural overhauls in decades, causing bandwidth to lag far behind compute density. Silicon power density is also colliding with a historical 1 W/mm² limit as upcoming chips approach 2,000 to 4,000 watts, forcing architectures to move toward vertical 3D memory stacking. To bypass terrestrial grid delays, operators are deploying unconventional physical engineering, such as converting diesel truck engines to run on natural gas on-site with local mechanics. Patel forecasts that OpenAI and Anthropic will jointly require over 100 gigawatts by 2030, with orbital space-based compute remaining under 1% of capacity due to launch costs. By 2040, however, as total compute scales into terawatts, he expects terrestrial constraints will push more than 50% of incremental capacity into space. ASIC Risks, the Compute Crunch, and Neocloud Execution Patel warns that hyper-specialized ASICs risk obsolescence in 'local minima' if core paradigms like the attention mechanism change, preserving a massive enduring market for adaptable general-purpose GPUs. Despite construction bottlenecks, global data center buildouts are projected to expand from 20 gigawatts to over 30 gigawatts next year. Demand continues to outstrip supply because frontier models expand the economic addressable market for tasks faster than physical compute can double, allowing labs like Anthropic to maintain high token gross margins above 80%. This demand has fueled the rise of Neoclouds over legacy hyperscalers. Hyperscaler architectures optimized for CPU isolation (like AWS Nitro) degraded distributed GPU training, whereas specialized builders like CoreWeave and Crusoe scaled bare-metal clusters faster. Patel notes that Nvidia deliberately funds Neoclouds and independent labs to cultivate a multipolar ecosystem, preventing the market from consolidating around proprietary chips like Google TPUs or Amazon Trainium. Patel concludes that hardware divergence will deepen as labs balance general-purpose silicon against custom ASICs, but navigating physical constraints in memory, power delivery, and site engineering will remain the defining operational challenge for the foreseeable future.

精炼阅读摘要

SemiAnalysis 创始人 Dylan Patel 指出,人工智能效率跃升的核心动力并非孤立的硬件更迭或底层代码调优,而是贯穿模型架构、软件内核与芯片特征的“软硬件协同设计”(Co-Design)。随着前沿模型推理需求呈指数级扩散,算力基础设施正从传统的云架构与静态评测,演变为受制于电力物理瓶颈、专有芯片与通用 GPU 生态博弈的深层次系统竞争。 软硬件协同设计的百倍增益与物理瓶颈 (23:45) Patel 反驳了低级内核优化空间已见顶的观点,认为将硬件升级、软件内核与模型架构视为独立孤岛忽视了最关键的乘数效应。若硬件、软件和模型层各自独立实现 2 倍提升,连续叠加仅能带来 8 倍(2×2×2)收益;但若三层同时进行协同设计,综合性能可释放高达 100 倍的飞跃。以 DeepSeek 为例,其 V3 与 V4 取得极高效率,关键在于混合专家(MoE)结构维度、显存带宽调度和算术强度均紧密贴合英伟达 Hopper 与 Blackwell 架构及华为芯片的物理特性;相比之下,专为密集型矩阵优化的 Google TPU 在运行此类模型时表现严重受阻。目前主流实验室均呈现协同绑定趋势,如 OpenAI 模型逐步转向 Blackwell 尺寸优化,Google Gemini 则围绕 TPU v6e 和 v7 联合设计。 然而,该演进路径正逼近严苛的物理边界。Patel 指出,存储容量与带宽的增长远落后于计算密度,且底层物理架构数十年来停滞不前——NAND 闪存单元发明已达 25 年,标准 DRAM 存储单元更已超过 40 年。同时,芯片功耗正突破维持了二十年的 1 W/mm² 功耗密度极限,英伟达下一代 Rubin 功耗预计达 2,000 瓦,Rubin Ultra 更逼近 4,000 瓦,迫使行业从传统的二维平面封装转向芯片上方垂直堆叠高带宽内存(HBM)等极限工程设计。 动态基准评测与吞吐交互的帕累托权衡 (15:00) 针对静态跑分在 AI 场景下的失效,SemiAnalysis 联合产业界建立了 InferenceX 评测体系。Patel 指出,PyTorch、vLLM 和 SGLang 等开源底层库每周更新约两次,伴随驱动与模型迭代,相同质量下的模型运行成本每年以约 60 倍的速度下降,单位瓦特算力智能水平每年提升约 40 倍。为了跟进这一快速变动的生态,InferenceX 整合了超过 5,000 万美元的各方捐赠硬件(涵盖约 15 种芯片架构),对中美主流模型执行每日自动化测试,避免以厂商未经调优的配置进行失真对比。 在具体的系统部署中,所有技术决策均受制于“吞吐量与交互延迟(Throughput vs. Interactivity)”的帕累托曲线。高交互性应用(如实时编程辅助或低延迟优先队列)采用低批大小(Batch Size)及投机解码技术,单用户可达 250 至 500 tokens/秒,但系统整体吞吐量被压低;而在后台文档离线批处理中,硬件批大小拉满至 100,系统总吞吐量可达 1,000 tokens/秒,折算出的单位硬件成本可直接降低 4 倍。Patel 强调,基础设施并不存在通用最优解,必须依任务对延迟的敏感度权衡成本乘数。 专用芯片局部最优与英伟达生态演变 针对云厂商自研 ASIC(如 Google TPU、AWS Trainium)是否会全面取代通用 GPU 的争议,Patel 警示了专有芯片面临的“局部最优(Local Minima)”风险。高度定制的专用集成电路极度依赖现行模型范式,一旦基础算法发生剧变(例如注意力机制被颠覆),定制芯片将面临迅速淘汰;而前沿实验室甚至无法确知未来一年的模型形态,因此通用计算仍具备不可替代的抗风险价值。英伟达借助其庞大的多元化客户生态,源源不断地将各方需求反哺于设计管线中。 与此同时,传统的“CUDA 软件护城河”正在经历重塑。由于 AI 编程辅助工具大幅降低了多硬件底层内核的编写门槛,且全球顶尖实验室仅有数十家,软件层正逐步被商品化。真正的锁定效应转向了“开源模型架构对硬件维度的顺应”:以 DeepSeek 等为代表的开源模型权重,其隐藏层与矩阵参数均针对英伟达 GPU 维度深度优化;下游应用开发者与推理服务商若脱离英伟达硬件运行这些模型,将遭受直接的性能劣化,从而在生态下游倒逼产业持续采购英伟达算力。 算力短缺下的电力工程与新兴算力云崛起 (65:00) Patel 驳斥了算力建设放缓或模型能力触顶的论点。他表示,前沿新模型对复杂工作流程的掌握呈阶跃式扩展,其创造的潜在市场总规模(TAM)膨胀速度远超物理芯片的扩充速度,导致行业陷入持续且前所未有的结构性算力紧缺。在此背景下,前沿实验室 API 毛利率普遍超过 80%,即便高溢价租用硬件仍能实现充裕利润。全球数据中心建设计划正从今年的 20 吉瓦狂飙至明年的 30 吉瓦以上,受制于传统电网审批迟缓,现场出现了将量产卡车柴油引擎改造成天然气发电机、聘用汽车机修工保障电力、以及利用负荷分流将硬件超额接入电网等务实工程手段。 在基础设施提供方层面,以 CoreWeave 和 Crusoe 为代表的 Neocloud 迅速分流了传统超大规模云厂商的份额。传统云原为 CPU 多租户隔离打造的架构(如 AWS Nitro)反而成为大型 GPU 集群的通信瓶颈;具有加密货币矿场运营经验的新兴云团队凭借极高的资本杠杆和高交付速度抢占了市场。此外,英伟达 CEO 黄仁勋出于战略考量,主动向 Neocloud 与独立模型实验室倾斜硬件与资金支持,以维系一个多极化买方市场,防止底层算力渠道被谷歌、微软及亚马逊的自研芯片体系垄断。 展望未来,Patel 预测到 2030 年仅 OpenAI 与 Anthropic 两家的电力需求就将超过 100 吉瓦,而到 2040 年全球推理算力规模进入太瓦(TW)量级时,地面资源约束将推动超过 50% 的增量算力转向轨道太空数据中心。然而在当下,行业的核心命脉依然系于近端供应链的精细物理现实——从纳米级微观制造步骤中的化学品单一依赖,到芯片、内核与模型维度三位一体的极限软硬件榨取。

Detailed notes — zh

## Background 本期内容由红杉资本(Sequoia Capital)合伙人 Shaun Maguire 与 Sonya Huang 主持,于 2026 年 6 月 30 日在播客及网络平台发布。节目深入访谈了半导体研究机构 SemiAnalysis 创始人 Dylan Patel,聚焦于软硬件协同设计如何带来 AI 的百倍能效跃升、推理经济学与底层芯片瓶颈,以及黄仁勋扶持新一代算力云以构建多极化算力格局的底层博弈。 ## TL;DR Dylan Patel 指出,AI 算力真正的百倍性能突破并非来自单纯的制程推进,而是模型、底层算子与硅片微架构端到端协同设计(Co-Design)的乘数效应;这解释了为何 DeepSeek 贴合 Hopper 架构而 TPU 运行吃力,以及 OpenAI 的稀疏化与 Anthropic 的稠密化各自走向了不同的硬件选择。他介绍了调动上亿美元硬件资源的 InferenceX 活体基准测试,揭示同等质量推理成本正以每年约 60 倍的速度断崖式下跌,并预言推理市场的经济价值未来将超越传统石油。同时,前沿模型解决高价值任务的增速远超数据中心建设步伐,让头部厂商即便承受极高租金也享有惊人毛利,进而促成全球白热化的算力大争霸。为了摆脱传统超大规模云厂商的扼制,黄仁勋正通过倾斜稀缺 GPU 资源与资金信用,深度扶持 NeoCloud 与开源模型生态,全力打造一个多极化的 AI 算力世界。 ## Atmosphere & style 整场对话语速极快、信息密度极大,充满了硬核硬件极客与顶级风险投资人碰撞的火花与思想交锋。Dylan Patel 展现出兼具底层供应链技术深度与冷酷商业经济学常识的鲜明个人风格,从童年修 Xbox、论坛版主水帖经历,一路侃到上千道芯片制造工艺制程与跨国电网套利,言谈犀利且毫不掩饰对行业主流偏见的反驳。现场氛围在严谨专业的产业推演与接地气、甚至带着几分黑色幽默的极客黑话(如拿柴油发动机发电、论坛水友互掐)之间自如切换,听众能清晰感受到那种在真实产业泥沼里浸润十余年后所淬炼出的笃定与狂热。 ## Bulletin - `26:30` Dylan Patel 指出,AI 领域最核心的增益来自软硬件协同设计而非单纯制程迭代,端到端打通模型、通信算子与硅片微架构能将传统的 8 倍孤立优化放大至 100 倍系统级跃迁。 - `13:58` SemiAnalysis 调动超 1 亿美元受赠算力搭建活体基准平台 InferenceX,监测显示同等模型质量的推理成本正以每年约 60 倍的速度断崖式下跌,每瓦智能年均提升近 40 倍。 - `36:11` 所谓的“CUDA 护城河”已脱离编程语言本身,转变为 DeepSeek、Qwen 等顶尖开源大模型的专家形状与底层算子天然针对英伟达 Hopper 物理规格协同设计所形成的下游硬件锁定。 - `01:07:05` 黄仁勋通过定向倾斜稀缺 GPU 配额并为 NeoCloud 算力融资提供信用兜底,旨在亲手扶植多极化 AI 生态,瓦解传统超大规模云厂商及其自研 ASIC 闭环的话语权垄断。 ## Key takeaways - `13:58` AI 推理创造的经济产值与 Token 消耗将远超传统石油工业,成为未来全球 GDP 中占比最高的人类最大产业。 - `17:40` 吞吐量与交互延迟的帕累托权衡是所有 AI 决策的源头,系统在单用户极速独占(250 tokens/s)与大并发高吞吐(1,000 tokens/s)之间存在显著的单位成本分化。 - `20:00` 受陆地能源与电网承载上限逼近影响,算力中心正向太瓦(TW)级演进,预计到 2040 年超过 50% 的新增算力部署将进入太空轨道。 - `22:00` 硅基智能与生物大脑在每瓦智能上的能效鸿沟无需焦虑,计算机集群不受疾病、睡眠和生理限制,工程上向集群倾倒电力的难度远低于向人脑供能。 - `23:45` DeepSeek 等模型的极致推理效率源于对特定硬件微架构的量体裁衣,DeepSeek-V3 的专家形状精准匹配 Hopper,导致在谷歌 TPU 等异构架构上运行效果极差。 - `28:30` 半导体产业长期面临的根本瓶颈在于基础物理层面的存储单元架构停滞,DRAM 与 NAND 核心单元已数十年未现底层突破,“存储墙”制约了算力扩展。 - `33:04` 前沿模型实验室架构发生分化:OpenAI 走向极端稀疏化且依赖 NVLink Switch 拓扑,Anthropic 模型相对稠密并适配 TPU 的直连网格拓扑,两者均无法在对方硬件上实现最优解。 - `40:00` 纯 SRAM 芯片架构(如 Cerebras、Groq)在面对 10T+ 超大参数量与百万级长上下文时,片上容量与 KV Cache 见顶,导致通信成本和单 Token 经济模型失衡。 - `47:10` 自研专用 ASIC(如 TPU、Trainium)高度依赖既定算法架构,一旦前沿模型微架构发生突变极易跌入“局部最优解”;英伟达通用架构凭借全行业多样化反馈更接近“全局最优”。 - `50:00` “算力荒”的深层原因是新一代模型解锁高价值任务所拓展的 TAM 呈非线性爆发,有用工效的价值扩张速度彻底甩开了物理数据中心的交付速度。 - `52:12` Anthropic 等顶尖厂商单 Token 销售毛利突破 80%,极夸张的单位经济模型赋予其极强支付能力,促使其以“不论多贵都租”的姿态抢购市面现存算力并实现盈利。 - `54:20` 模型正在通过编写底层算子、调优基础设施代码实现“伪递归自我改进”,推动模型迭代速度与软件优化效率超越以往周期。 - `01:00:00` 算力地产呈现阶梯式溢价,托管电力基准价格普遍翻倍至每月 120-160 美元/kW,巨头通过本地电池、调峰发电机与动态负载调度实现电网柔性套利。 - `01:04:45` 传统超大规模云厂商的 Nitro 虚拟化隔离与多租户切片在分布式大模型集群中成为性能累赘,而脱胎于加密基建的 NeoCloud 凭借低延迟裸金属网络与极快工程速度杀出重围。 ## Detailed walkthrough ### `00:00` SemiAnalysis 的内部文化与童年“第一座神经网络” 红杉资本(Sequoia Capital)合伙人 Shaun Maguire 与 Sonya Huang 走访了 SemiAnalysis 位于加州的办公室,与创始人 Dylan Patel 展开深度对话。谈及团队现状,Dylan 介绍公司目前已有约 90 名员工,团队构成非常奇特:相当大一部分是横跨整个半导体与硬件供应链的硬核工程师与技术专家,另一大部分则是来自各大对冲基金的资深金融人士。这样的组合导致内部讨论异常激烈且画风清奇——金融背景的人会质疑某项技术不重要,转而死磕成本结构;而工程师则会拍案而起,据理力争“这才是最酷的技术架构”。Dylan 调侃自己曾经当过论坛版主,团队内部非正式的辩论氛围就像论坛水帖打架一样热烈,Shaun 也笑称这纯属“别和猪摔跤,因为猪乐在其中”。 Shaun 赞叹 Dylan 在五年前半导体在西方世界被视作冷门、无聊领域时,就精准押注并坚持做多,如今把 SemiAnalysis 做成了全球半导体与 AI 硬件领域最权威的独立研究机构。坊间不仅传言 SemiAnalysis 的年营收已突破 1 亿美元,还传出他们可能成立风投基金的流言;对此 Dylan 半开玩笑地回应“这些传言和外界信息的准确度一样真假难辨”。当被问及成长背景时,Dylan 讲述了他在家庭小生意中长大的童年: ```mermaid flowchart LR accTitle: Dylan 的早年商业直觉形成路径 accDescr: 展现 Dylan 从汽车旅馆和加油站帮工,到维修 Xbox 进而入坑硬件与论坛管理的过程。 subgraph Family["汽车旅馆与加油站帮工"] A["家庭汽车旅馆/加油站成长"] --> B["靠视觉与特征预测香烟型号"] B --> C["形成敏锐的商业与经济成本直觉"] end subgraph Hardware["硬件启蒙与互联网社区"] D["8岁获赠 Xbox 360"] --> E["遭遇红环故障并自行动手修复"] E --> F["12岁担任 Reddit 硬件与科技板块版主"] end C --> G["软硬件全栈与商业分析视角"] F --> G ``` 父母经营汽车旅馆,并在马路对面开了一家加油站,全家就住在汽车旅馆里。Dylan 很小就在加油站里帮忙。他打趣道,自己“训练的第一座神经网络”,其实是在柜台根据进门顾客的外貌特征预测他们要买什么烟: - 因为货架极高且自己身高不够,未到法定工作年龄的他必须踩着脚凳才能取下香烟。 - 如果等顾客开口才动,流程会很慢;因此只要看到一位卷发年长白人女性走进来,他就会立刻把脚凳推到骆驼牌(Camel)下方;碰到其他族裔、年龄或职业的顾客,则提前移到薄荷烟(Menthols)或 100s 细支烟的货架前。 真正的硬件启蒙发生在 8 岁。5 月过生日的 Dylan 在 4 月看到了微软发布的 Xbox 360。为了确保能拿到心仪的主机,他甚至放弃了生日礼物,将其作为换取圣诞礼物的筹码。几个月后,同样住在汽车旅馆的阿拉巴马堂兄趁春假来访,Dylan 本想在堂兄面前炫耀这台主机,不料机器遭遇了著名的“三红故障”(Red Ring of Death,硬件过热虚焊缺陷)。在尝试了网上各种偏方无果后,他亲自拆开机箱,通过短接温度传感器强行让风扇全速狂转,居然修好了主机。这次经历彻底打开了硬件的潘多拉魔盒,让他一头扎进了半导体与计算机硬件的世界。 --- ### `05:00` 论坛淬炼、低谷重击与 SemiAnalysis 的诞生 到了 12 岁,随着 Reddit 逐步吞并其他传统网络论坛,Dylan 成了 Reddit 上 Android、Apple、Google 以及 Hardware 等板块的版主,同时高频追踪 Intel、NVIDIA、AMD 等板块的动态。他亲眼目睹了智能手机架构从原始形态飞速演进,在技术与微架构复杂度上甚至一度反超传统 PC,也同步跟踪每一代 GPU 的更新换代。家庭小生意的经历赋予了他极强的商业与经济视角。当时论坛上的硬件极客们因为性价比极力追捧 AMD 显卡,Dylan 虽然自己也买过 AMD,但在辩论中始终看好 NVIDIA: - 他在 12 岁前后就指出,NVIDIA 能够用面积更小的芯片实现更高的性能和能效比。 - 较小的芯片面积意味着更低的制造成本与更高的毛利率,从经济模型来看 NVIDIA 拥有更好的商业壁垒。 除了硬件,Dylan 还透露自己是个“极其重度且具有执念的杂家”:他曾是即时战略游戏《星际争霸》(StarCraft)北美天梯的宗师级(Grandmaster)顶尖玩家。谈及学业,他表示自己成绩一直保持在 A 左右,虽未拼尽全力刷满绩点,但足以向亚裔父母交差;他甚至掌握流利的西班牙语。 大学毕业后,Dylan 拥有了几个非半导体专业的学位,并在一家小型量化风险管理公司担任了两年的量化分析师(Quant)。然而在 2020 年初,一系列密集打击接踵而至: - **职场失信**:他在量化公司利用市场漏洞为公司创造了超过 1000 万美元的无风险收益,奖金却被克扣,功劳更被他人顶替;虽然最终获得补偿,但与雇主之间的社会契约彻底破裂。 - **家庭变故与情感挫折**:自小陪伴长大的祖母患上阿尔茨海默症并忘记了他,随后在一场严重的楼梯跌倒事故中不幸去世;与此同时,感情生活也遭遇重创。 2020 年初新冠疫情暴发,Dylan 搬到纳什维尔与哥哥及准嫂子同住。原本以为封城只有几周,结果无限期延长。寄人篱下的拘束感与失去生活重心的迷茫交织在一起,他不关心主业,开始疯狂在网络上交易股票,通过做空又做多疫情剧烈波动赚到了不少钱,同时也密切关注当时爆发的全球半导体供应链短缺。在一次网络争论中,他的匿名账号遭遇了恶意人肉搜索(doxxed),真实身份被公之于众。 ```mermaid flowchart TD accTitle: SemiAnalysis 的建立与早期自驱学习 accDescr: 展现从身份暴露、创办博客到皮卡房车横跨全美自学的转折过程。 A["匿名账号被开盒 (Doxxed)"] --> B["陷入恐惧并停更3周"] B --> C["心理突破:以真名在24岁生日创立 SemiAnalysis 博客"] C --> D["投入极大心血撰写高质量深度半导体长文"] D --> E["文章引发行业轰动,咨询业务与客户主动涌入"] E --> F["开皮卡挂帐篷环游全美国家公园6个月"] F --> G["工作日住30美元汽车旅馆写研报,周末徒步啃半导体与AI技术教材"] ``` 在经历三周的恐慌停更后,Dylan 突然醒悟:“我到底在怕什么?”在 24 岁生日那天,他彻底抛弃匿名马甲,正式创办了名为 **SemiAnalysis** 的独立博客,并首发了两篇重磅长文。这两篇文章不同于以往在论坛上的碎碎念水帖,而是倾注了极高专业密度的深度分析,成为当时互联网上能找到的质量最高的半导体研报,迅速在业内引爆关注,大批行业咨询需求随之涌入。 为了彻底走出低谷,Dylan 随后买了一辆皮卡车,后斗装上帐篷和充气床垫,开启了长达半年的横跨全美国家公园之旅。周一到周四,他找沿途极廉价的汽车旅馆住下(经常凭经验把房费砍到 30 美元一晚),夜以继日地处理 SemiAnalysis 的咨询业务与深度撰稿;周末则驱车进入国家公园,在荒无人烟的徒步路线中啃读一本又一本晦涩的半导体芯片与 AI 架构教材,或者边走边听专业音频书。这六个月彻底孤独的修行,不仅完成了他对半导体与 AI 底层软硬件体系的知识闭环,也正式拉开了 SemiAnalysis 席卷全球科技分析圈的序幕。 ### `10:00` 半导体老兵、秘密供应链与 40 多场全球行业大会 从 2020 年年中开始,Dylan Patel 彻底过上了“四海为家”的生活,并在 2021 年底到 2024 年间维持着这种状态。早期在没有星链(Starlink)网络的情况下,他曾与朋友以及前女友在拉丁美洲背包旅行并远程工作,身边所有人都无法理解地问他:“你到底在搞什么鬼?”随后,他的生活重心完全转向了全球半导体供应链。他化身为行业“漫游者”,每年自费参加 40 多场大大小小的专业会议与行业展会,只要供应链上出现任何他觉得有趣的环节,他就会毫不犹豫地飞过去。 在这些会议中,Dylan 挖掘到了巨大的信息宝藏。半导体制造领域充斥着资深的“婴儿潮一代”(Boomer)专家,平日里极少能见到真正对底层技术满腔热忱的年轻人;当 Dylan 带着极度兴奋与好奇的态度向他们请教时,这些行业前辈往往知无不言。各类展会的风格反差极大:像 NeurIPS 这样聚集全球顶级 AI 学者的盛会,大部分参会者与 Dylan 年龄相仿,活动充满派对与社交活力,而且概念框架(如神经符号推理等)很容易在刷过两三届后融会贯通;然而另一极端则是极其小众的硬件与化学会议。Dylan 回忆起自己在日本参加的一场化学闭门会,现场挤着 300 多位日本技术人员,全场仅有来自 ASML、台积电(TSMC)和英特尔(Intel)的 60 多人会讲英语,其他人全说日语。Dylan 凭借跨越文化背景与人沟通的天赋,硬是在语言不通的情况下与老工程师们打成一片。 Dylan 尤其推崇 SPIE(国际光学工程学会)旗下的先进微影技术(Advanced Lithography)与光掩模(Photo Mask)等高门槛技术会议。这些领域极其晦涩深奥,他第一次去时甚至听不懂 90% 的内容,只能靠硬啃论文、结识圈内人不断追问,到第三次去才能搞懂 75% 左右。他指出,参加展会的真正价值远不在于公开宣读的研究论文,而在于探寻“前沿研究与产业现实之间的交集”。论文从不写当下产业的真实秘密,但通过与技术人员深入交谈,就能摸清隐秘的供应链上下游关系、化学品的单耗与成本,以及令人心惊肉跳的断供隐患。例如,某类关键半导体化学品全球仅有三家工厂能造;一位日本工程师曾用蹩脚的英语告诉他,其父亲在 1980 年代工作时,全球唯一生产某种关键树脂材料的工厂发生大火,直接引发全球内存价格暴涨两到三倍——这种脆弱的供应链瓶颈与当下并无二致。 - **行迹跨度**:自 2020 年年中起处于无固定住所状态,2021 至 2024 年间每年奔赴 40 余场全球技术峰会。 - **大会反差**:学术圈年轻化的 NeurIPS(AI 研究与高频社交)对比极其硬核晦涩的 SPIE 光刻/掩模大会与日本化学闭门会。 - **隐形供应链**:公开论文不披露工程细节,行业内情全靠与资深工程师交流才能获悉真实的物料成本、单台设备用量及极度集中的卡脖子原料节点。 --- ### `13:58` 为什么说 AI 推理将成为超越石油的人类最大产业? 当被问及“推理(Inference)是否会成为地球甚至地外最大的市场”时,Dylan 给出了非常肯定的回答。他指出,Token 的消耗与从中衍生出的经济价值将是人类有史以来最庞大的产业,Tokenomics(代币经济学/Token 用量)构成了整场 AI 变革的核心。不论未来是开源模型还是闭源模型主导,AI 推理创造的产值都将远远超过传统石油行业,在未来全球 GDP 中占据极高的百分比份额。 由于推理将承载数以万亿计的经济价值,推理性能的度量与评测变得前所未有地关键。然而,传统行业内的基准评测往往只是“特定时间点的静态快照(point-in-time snapshot)”,不仅发布周期极其缓慢,而且一经发布便已彻底落伍。现实中的 AI 技术正以令人目眩的速度演进:几乎每周都有新的前沿模型问世(从国内的月之暗面、阿里巴巴 Qwen 等,到海外最新的 Mythos 5、Fable);在软件基础设施层,PyTorch、vLLM、SGLang 等关键推理引擎及底层驱动的平均更新周期是“每周两次”。伴随推测解码、多 Token 预测等新型优化算法的层出不穷,同等质量模型的推理成本正以每年约 60 倍(60x a year)的惊人速度断崖式下跌。面对这种狂飙突进,静态评测毫无意义,行业迫切需要一个实时反映最前沿硬件与软件组合的“活体基准(living and breathing benchmark)”。 ```mermaid flowchart TD accTitle: Inference Cost Collapse Pipeline accDescr: 展现模型更迭、软件高频发布与推理优化技术如何共同推动每年60倍成本降幅 subgraph RapidChanges["技术高频迭代周期"] M["前沿模型每周上新<br/>(国产开源 / 闭源 / 美国模型)"] S["软件栈高频更新<br/>(PyTorch / vLLM / SGLang 每周发版2次)"] K["底层算子与推理优化<br/>(推测解码 / 多Token预测 / 新Kernel)"] end subgraph Impact["产业结果"] Drop["同等模型质量成本<br/>每年暴降约 60 倍"] Need["催生对动态基准测试的迫切需求<br/>(静态基准立即失效)"] end M --> Drop S --> Drop K --> Drop Drop --> Need ``` --- ### `15:52` InferenceX 的诞生:汇聚上亿美元算力的“活体基准” 为了打破传统基准评测的滞后与虚假宣传,SemiAnalysis 启动了名为 InferenceX 的庞大工程。Dylan 坦言,这完全仰赖团队在业内积累的声誉与“气场(Aura)”,才得以让竞争激烈的巨头们坐到同一张桌子上:包括 CoreWeave、Crusoe、Nebius、Oracle、微软、亚马逊、谷歌乃至 OpenAI 在内的云厂商与 AI 机构,纷纷向他们无偿捐赠顶级计算资源;开源生态中的核心阵营 SGLang、vLLM,以及商业化实体 Radix Arc 和 InfraAct 也全流程深度配合;英伟达(NVIDIA)、AMD 也全面加入支持。 随着 Google TPU 与 AWS Trainium 的接入,InferenceX 平台调动的硬件设备价值从 5000 万美元直接跃升至 1 亿美元以上,覆盖了大约 15 种不同的 AI 芯片架构。在这套自动化测试平台上,每天都在全天候运行来自全球顶尖开源实验室的最新模型(包括 Moonshot、阿里等约 5 家中国顶尖团队的模型,以及美国的开源主力模型),并自动遍历不同的配置参数、量化方式与优化方案。 更重要的是,InferenceX 彻底打破了芯片厂商长期以来的“基准造假操纵”。很多厂商在公布评测时,往往用自己调优到极限的最优配置去对比竞品随手配置的极差数据——“这就像我开着一辆保时捷,去跟一位专业赛车手比圈速一样不公平”。InferenceX 将测试所得的所有配置与环境全面开源打包成容器镜像,绘制出完全客观的帕累托最优前沿曲线(Pareto Optimal Curve)。任何开发者只需直接从 InferenceX 下载对应的最优配置文件,就能在自己的硬件上实现接近极限的吞吐与延迟表现。 - **受赠算力规模**:已获得超 5000 万美元硬件捐赠,随着 TPU 与 Trainium 上线,测试集群价值将突破 1 亿美元。 - **覆盖芯片类型**:横跨约 15 种主流算力芯片(涵盖英伟达、AMD、谷歌 TPU、亚马逊 Trainium 等)。 - **自动化追踪**:每日自动化拉取最新模型与开源引擎,全量公开测试参数与容器,任何人均可免费复现。 --- ### `17:40` 吞吐量与交互延迟:决定一切 AI 架构的帕累托曲线 在 Dylan 看来,“吞吐量(Throughput)与交互性(Interactivity)的权衡曲线”是整个硬件架构、基础设施、模型乃至上层应用层“所有决策的源头”。目前许多人将 AI 算力视为千篇一律的一体化资源,但实际工作负载在对延迟和成本的诉求上存在巨大的结构性分化。 在这条权衡曲线的一端是极度追求低延迟的即时交互(Interactivity):系统必须极快响应,每个用户独享高带宽,此时批处理大小(Batch Size)被压得极低,并叠加推测解码(Speculative Decoding)或多 Token 预测等激进优化。这些手段虽然大幅提升了单个用户的体感速度,但从芯片整体利用率来看单位成本显著上升。曲线的另一端则是大规模离线文档或批处理任务(Batch Processing):业务根本不在乎单份文档是耗时数秒还是通宵跑完,此时系统会将 Batch Size 堆到极致,单位用户的速度可能只有 10 tokens/s,但整块芯片的综合吞吐能够达到 1000 tokens/s,从而将每个 Token 的边际成本压到最低。 Dylan 指出,当前顶级 AI 公司已经在产品定价上体现出这种底层差异:例如 Anthropic 的 Claude Code 的“快速模式(Fast Mode)”费用远高于普通模式,OpenAI 的优先级队列也是同理。他给出了一个极为直观的量化对比:假设系统以 Batch Size = 100 运行,每个用户只能分配到 10 tokens/s 的低速响应,但整块算力芯片的总输出高达 1000 tokens/s;反之,若单用户独占并全力加速,用户能享受 250 tokens/s 的极致丝滑响应,但整块芯片的整体吞吐也随之萎缩至 250 tokens/s。现实中普通用户最舒适的交互区间通常在 50 至 100 tokens/s,因此寻找吞吐量与并发数之间的帕累托最优平衡点,才是基础设施调度与商业化计费的核心命脉。 ```mermaid flowchart LR accTitle: Interactivity vs Throughput Tradeoff Curve accDescr: 展现极低延迟与高吞吐批处理两种工作负载在Batch Size、硬件吞吐及成本上的对比 subgraph LowLatency["高交互 / 超低延迟模式"] direction TB L1["Batch Size = 1 (单用户独占)"] L2["启用推测解码 / 多Token预测"] L3["单人速度: ~250 tokens/s<br/>芯片总吞吐: 250 tokens/s"] L4["特征: 极速响应,但单位成本极高<br/>(如 Claude Fast Mode / 优先队列)"] L1 --> L2 --> L3 --> L4 end subgraph HighThroughput["高吞吐 / 批量处理模式"] direction TB H1["Batch Size = 100+ (大并发打包)"] H2["最大化显存与计算单元填充"] H3["单人速度: 10 tokens/s<br/>芯片总吞吐: 1,000 tokens/s"] H4["特征: 离线文档批处理,单Token成本最低"] H1 --> H2 --> H3 --> H4 end LowLatency <-->|"帕累托最优权衡曲线<br/>(Pareto Frontier)"| HighThroughput ``` ### `20:00` 推理算力的空间迁移:从陆地瓶颈到太瓦级星际计算 推理部署本质上是一个关于权衡的动态曲线:通过调节批处理(Batching)规模,同一套硬件既可以追求极高吞吐量以换取 4 倍的成本下降(例如将每秒吞吐量从 250 个 token 提升至 1000 个),也可以牺牲吞吐以换取极致的低延迟。后一种场景下,用户甚至愿意多付 4 倍溢价,因为终端用户的时间价值极高,或者业务反馈闭环的延迟代价极其昂贵。在谈及推理算力的终极边界时,Shaun Maguire 抛出了一个极具前瞻性的设想:在未来的 10 到 15 年内,究竟会有多少比例的推理算力被送入太空部署? Dylan Patel 给出了一个反共识的判断。尽管他开玩笑说自己是 SpaceX 的狂热粉丝(“如果他们 IPO,我绝对买爆,当然这不是投资建议”),但他并不认为太空数据中心在未来 3 到 5 年内会产生实质影响。核心制约因素在于地面电力的建造成本以及陆地能源供应的承载上限。然而,随着推理算力对电力的渴求呈现出指数级爆发,长期格局将彻底重构: - **2030 年算力规模**:仅 OpenAI 和 Anthropic 两家公司,届时合计消耗的电力就将突破 100 GW(千兆瓦),若再加上 Meta、Google 等科技巨头,专用于推理的电力需求将无比庞大。在此阶段,太空算力的占比仍将低于 1%。 - **2040 年星际迁移**:随着生产力曲线的持续爆发,推理电力需求将跨入 TW(太瓦)量级。在陆地电网和用地不堪重负的背景下,预计到 2040 年,超过 50% 的新增算力部署将进入太空。 --- ### `22:00` 每瓦智能(Intelligence per Watt)与生物大脑的差距 针对“每瓦智能”的演进速度以及硅基计算与人类生物大脑之间的悬殊鸿沟,Dylan 提出了独特的评估视角。他幽默地指出,衡量维度至关重要——如果仅仅比较数学运算能力,一台有着 30 年历史的 TI-84 图形计算器在“每瓦智能”上就已经把人类大脑碾压得体无完肤。但就通用智能(AGI)而言,软硬件系统的进步速度同样令人惊叹。 依托 SemiAnalysis 打造的 InferenceX 活体基准测试平台,团队不仅追踪硬件的吞吐量与交互延迟,更实时监测系统的真实能耗与部署成本。数据显示: - **成本与能效的年度降幅**:在保持相同基准性能输出的前提下,推理成本以每年约 60 倍的速度断崖式下跌;而在“每瓦智能”这一指标上,年均提升幅度也达到了近 40 倍(部分效率提升来自于非电力相关的软硬件架构优化)。 - **人机能效差距的现实意义**:尽管当前的硅基智能与人类大脑的能效相比仍存在多个数量级的鸿沟,但 Dylan 认为业内完全无需为此焦虑。给计算机堆砌能源,远比给人类大脑供能要容易得多——正如他所调侃的,机器没有疾病困扰,不需要面对复杂的食物偏好,更不需要停机睡眠,“我们可以毫无阻碍地将海量电力源源不断地倾倒给计算集群”。 --- ### `23:45` 反驳纯硬件论:模型与芯片架构的深层绑定 在探讨智能与成本效率的核心驱动力时,Shaun Maguire 提出了一种经典的三层归因框架:硬件效率提升、底层系统与算子库优化(如 GEMM 矩阵乘法库优化)、以及高层模型算法改进。Shaun 倾向于认为过去三年的主要红利源于硬件换代和部分算法改进,而底层算子已无太多油水可榨。对此,Dylan 毫不留情地予以正面反驳:“Shaun,我完全不同意你的看法。” ```mermaid flowchart TD accTitle: 软硬件协同设计的增益倍增机制 accDescr: 对比孤立分层优化与全栈协同设计之间的增益差距,展示软硬件端到端联合设计如何将8倍收益放大至100倍。 subgraph Isolated["传统孤立优化(各层割裂)"] M1["模型算法层优化<br/>(~2x)"] S1["底层算子与系统库<br/>(~2x)"] H1["硅片硬件迭代<br/>(~2x)"] M1 -.-> S1 -.-> H1 H1 ==> R1["乘积收益上限: 约 8x"] end subgraph CoDesign["全栈协同设计(Hardware-Software Co-Design)"] M2["模型微观架构定制<br/>(专家形状 / 稀疏度 / 注意力强度)"] S2["通信与编排协同<br/>(网络 I/O 模式 / 集合通信算子)"] H2["硅片硬件专有适配<br/>(Hopper / Blackwell / 专用 TPU)"] M2 <--> S2 S2 <--> H2 H2 ==> R2["端到端破局收益: 达 100x"] end ``` Dylan 解释称,如果单纯看硬件本身,从英伟达 Hopper 到 Blackwell 的演进,在 InferenceX 针对 DeepSeek 这种极限优化的模型测试中,展现出了约 30 倍的吞吐提升。然而,过去三年整体“每瓦智能”的跨越远远超越了这一数字。模型层的剧变有目共睹——三年前行业标杆是体积庞大、运行沉重的原生 GPT-4,而如今一个总参数仅 27B、激活参数仅 2B 的小尺寸 Qwen 模型就能在很多任务上超越它。但更深层次的推力,在于模型架构与芯片微架构之间的**全栈协同设计(Hardware-Software Co-Design)**: - **DeepSeek 的硬件量体裁衣**:DeepSeek 惊艳业界的极高推理效率,绝非仅仅依靠几个底层 Triton 算子或内存显存重排,而是其专家模型结构就是为特定硬件深度定制的。DeepSeek-V3 的专家形状(Expert Shapes)完全是贴着英伟达 Hopper 芯片的计算特性设计的;而迭代中的 DeepSeek-V4,则转而精准贴合英伟达 Blackwell 和华为昇腾芯片的微架构。 - **TPU 的结构性错位**:谷歌的 TPU 系列客观上是非常出色的芯片,承担了 Google DeepMind 的所有负载以及 Anthropic 的全部预训练工作。然而,TPU 在运行 DeepSeek 时却表现极差(“TPUs suck at running DeepSeek”),但在运行某些英伟达 GPU 并不擅长的专有模型架构时,TPU 却能展现出极高能效。这种两极分化充分证明了软硬件已经深度绑定到算子形状、网络 I/O 模式、集合通信机制以及注意力算术强度(Arithmetic Intensity)之中,根本无法孤立看待。 --- ### `26:30` 协同设计的乘数效应:从 2×2×2 到 100x 的跃迁 针对 Shaun 提出的“中国团队是否在协同设计上走在西方前面、DeepSeek 是否首创了这种范式”的疑问,Dylan 指出这只是一种信息披露透明度的假象。西方顶尖实验室选择对核心技术细节秘而不宣:OpenAI 从未公开过 GPT-4o 的网络稀疏度有多高、内部专家形状如何构造,但事实上 GPT-4o 的体积与 DeepSeek-V3 大致相当(甚至略小),且发布时间更早。 顶尖实验室在软硬件多层协同上的博弈策略各不相同: - **Anthropic 的混合算力架构**:预训练主要依托谷歌 TPU,而在推理端则大量采用 AWS Trainium 以及英伟达 GPU(作为通用适配兜底),针对不同硬件平台分别深度改造其模型结构与通信管线。 - **OpenAI 与 Google 的代际协同**:OpenAI 早期模型针对 Hopper 深度定制,下一代全面转向 Blackwell;Google 内部的 Gemini 2 与 Gemini 3 则分别与 TPU v6e 和即将到来的 TPU v7 进行软硬件同周期开发。如果把针对新硬件优化的模型粗暴地搬到上一代旧芯片上运行,其性能往往会大打折扣。 - **“100x” 的非线性乘数法则**:当创新停留在孤立层级时,模型层带来 2 倍、系统算子带来 2 倍、硬件架构带来 2 倍,三者相乘不过是 8 倍提升;但一旦打破层级壁垒进行端到端协同设计,跳过中间抽象层的损耗,所爆发出的系统综合增益甚至能达到惊人的 **100 倍**。这种生态纵深在英伟达(从硅片微架构一路布局到模型库)和台积电 TSMC(将底层耗材、晶圆工具与上游客户的芯片设计紧密捆绑)身上体现得淋漓尽致。 --- ### `28:30` 技术演进的深层瓶颈:停滞数十年的存储单元架构 当被问及未来一年内最值得警惕的非供应链瓶颈时,Dylan 避开了常规的产能配额话题,直指半导体底层物理技术的停滞——存储单元架构(Memory Cell)。 内存的容量密度与带宽扩展速度正变得越来越缓慢,其底层原理已陷入长期的技术平台期: - **NAND 闪存**:其核心存储栅极架构的发明距今已有 25 年之久; - **DRAM 内存**:基本的电容-晶体管(1T1C)单元架构更是早在 40 年前就已经确立。 在过去几十年中,业界仅仅是在这套极度古老的单元结构上做工艺微缩和空间堆叠,而在“基础存储单元究竟是什么”这一核心命题上,人类半导体工业已经很久没有出现革命性的底层突破。随着计算核心以指数级扩充,存储墙(Memory Wall)在基础物理层面面临的严峻考验,正逐渐成为整个协同设计链路中最顽固的掣肘。 ### `30:00` 突破芯片物理极限:3D 内存堆叠、功率密度与非常规能源方案 在过去五年中,半导体行业对高带宽内存(HBM)的改进主要停留在堆叠更多层数、提升传输速度等渐进式优化上。但 Dylan Patel 指出,未来几年将迎来颠覆性变革:业界正在研发将内存直接 3D 垂直堆叠在计算芯片本体之上的架构,这将使内存带宽发生爆发式增长。 不仅是带宽,功耗与封装形态也在逼近临界点。回顾过去二十年,无论是桌面芯片还是数据中心芯片,其功耗基本上都有迹可循——大约被锁死在“每平方毫米 1 瓦特”(1 W/mm²)的经验极限上。因此,一枚 100 平方毫米的芯片功耗大约在 100 瓦左右;即便是 NVIDIA 最新的 GPU 或 Google 最新的 TPU,依然在这个物理密度范围内。当前高端芯片功耗已达 1,400 瓦,下一代 NVIDIA Rubin 将攀升至 2,000 瓦,而 Rubin Ultra 甚至可能逼近 4,000 瓦,目前这种功耗的上涨主要是通过拼命堆砌芯片硅片面积来实现的。 然而,目前芯片工程界正在攻关的真正前沿,是将单位面积的功率密度大幅推高至远超 1 W/mm²。这一突破意味着可以用极小面积的硅片输出相同甚至更高的算力,但随之而来的是极其苛刻的工程挑战——散热排热难题、严重的电磁与电气干扰等。 面对数据中心激增的用电需求,Dylan 提出了一个非常务实且带着点硬核工程幽默的能源应急解法:人们总把能源瓶颈挂在嘴边,但实际上美国具备年产数百万台卡车柴油发动机的巨大工业产能。 - 工厂只需稍作改动,即可将这些柴油机改装为天然气发动机; - 随后将发动机反向接入电动机(使其充当发电机运行),直接烧天然气发电; - 至于数百台内燃机分散在数据中心现场的运维难题,完全不需要招募高级工程师,直接从遍布全美的汽车维修店里拉来修车技工即可胜任日常维护与发动机大修。 Dylan 感叹,过去二三十年间西方人才更热衷于“制造广告、售卖广告”,导致半导体与底层重工业缺乏顶尖头脑关注;如今当最聪明的人才重新回到硬件物理领域,创新的空间依然极其广阔。 --- ### `33:04` 算力双雄:NVIDIA GPU 与 Google TPU 的协同设计较量 针对业界极具争议的“NVIDIA GPU 与 Google TPU 谁更强”的议题,Dylan 认为不能抛开模型孤立地比较硬件。几年后 Google 供应链每年的 TPU 产值有望超过 1000 亿美元(年产量达到 1000 万颗以上),而 NVIDIA 的 GPU 年产值将突破数千亿美元(产量数千万颗)。二者各具鲜明优势: - **NVIDIA**:强调 NVLink 交换机架构(Switches)以及通用的编程灵活性; - **Google TPU**:追求更高能效比,其互连网络针对特定模型架构进行了极限精简与优化。 Dylan 强调,任何人都可以言之成理地辩护 GPU 远强于 TPU,或者反之,因为核心分水岭在于**硬件与软件的协同设计(Hardware-Software Co-Design)**。甚至可以说,如果让 OpenAI 目前的模型强行跑在 Google TPU 上,那将是一个糟糕的决定;而如果让 Anthropic 或 Google 现有的模型强行用 NVIDIA GPU 来训练,效果同样可能大打折扣。 两家前沿实验室的模型架构正在发生根本分化: 1. **矩阵乘法单元(MMU)尺寸**:底层硬件的计算单元尺寸不同,决定了模型在设计时挑选的最佳注意力机制结构、隐层维度(Hidden Dimensions)和专家网络(MoE Experts)形态。 2. **稀疏性(Sparsity)取向**:OpenAI 的模型架构走向了更极端的稀疏化(Much more sparse),而 Anthropic 的模型虽然也采用 MoE,但整体风格更为稠密(More dense),这直接影响了计算与显存访问模式。 3. **集群互连拓扑(Network Topology)**: - NVIDIA 依赖 NVLink Switch 架构,单域目前直接互联规模通常为 72 颗 GPU; - Google TPU 采用直接芯片间互联(ICI),中间没有任何交换机,可以通过网格/环面直连拓扑将多达 8,000 颗芯片以超高带宽互联。但没有交换机的代价是跨节点通信必须穿透中继芯片(Pass-through),这对模型的张量并行与流水线切分逻辑提出了完全不同的软硬件协同约束。 ```mermaid flowchart TD accTitle: Hardware and Model Co-Design Comparison accDescr: Comparison between NVIDIA GPU and Google TPU architectural co-design paradigms. subgraph NVIDIA_Ecosystem["NVIDIA 硬件与模型生态"] direction TB N1["硬件特性: 通用 MMU + NVLink Switch (72卡全互联)"] N2["模型架构: 偏向极度稀疏 (如 OpenAI) 或开源适配"] N3["开源网络: DeepSeek / Qwen / Kimi 专为 Hopper 定制"] N1 --> N2 N2 --> N3 end subgraph Google_Ecosystem["Google TPU 硬件与模型生态"] direction TB G1["硬件特性: 专用优化 MMU + ICI 拓扑直连 (8,000卡无Switch穿透)"] G2["模型架构: 相对稠密网络 (如 Anthropic / Gemini)"] G3["自建闭环: 需 Gemma 等原生模型带动生态"] G1 --> G2 G2 --> G3 end ``` --- ### `36:11` 被解构的“CUDA 护城河”与开源模型的硬件锁定 针对主机主持有的“由于 Claude、Codex 等 AI 编程助手能极快地辅助工程师手写异构底层算子,CUDA 的护城河正在瓦解”的观点,Dylan 给出了独到的拆解。 所谓“CUDA 护城河”在软件层面上确实已经大幅脱耦。对于拥有顶尖工程师团队的前沿大模型公司而言,他们早就不依赖标准的开源 PyTorch 堆栈(例如 OpenAI 早在多年前就 Fork 并魔改了 PyTorch),他们完全可以根据自己选定的最优硬件,借助 AI 工具从底层从头重写 Kernel 与模型架构。 但**真正的硬件锁定转移到了下游的开源生态**: - 包括 DeepSeek、月之暗面(Kimi)、智谱 AI(Zhipu.ai)、阿里巴巴(Qwen)、腾讯以及小米等公司,发布其重磅模型时,其底层算子、专家尺寸(D_model、隐藏层维度)都是围绕 NVIDIA Hopper 等 GPU 的硬件物理规格精心打磨与协同设计的(Co-designed for GPUs)。 - 这种协同设计导致这些模型天然在 NVIDIA 硬件上效率极高,直接移植到 Google TPU 上往往运行效果不佳。 - 连锁反应随即发生:下游的推理 API 服务商、做强化学习微调的企业、垂直场景二次开发的客户,为了调用这些开源生态中的顶尖模型,就必须继续租赁或采购 NVIDIA GPU。 除非 Google 能将其自身的 Gemma 等模型推向绝对领先的主导地位,否则即使大模型不需要依赖 CUDA 语言本身,以 GPU 为物理基底的模型拓扑依然构成了极其坚固的事实壁垒。 --- ### `38:40` Cerebras 的极速推理、晶圆级芯片与暗面投资回报 当话题转向晶圆级计算公司 Cerebras 时,Dylan 对其在特定细分市场的创新给予了高度评价。SemiAnalysis 团队在日常高强度调研中,几乎全员默认开启“快速模式(Fast Mode)”,因为极高吞吐、极低延迟的 Token 生成速度对于高复杂度任务具备无可比拟的生产力价值。 Dylan 介绍了 SemiAnalysis 内部严苛的成本回报审计文化(包括此前引发广泛关注的“暗黑 GDP”(Dark GDP)研究文章): - 公司系统性追踪每位分析师每天消耗的 Token 支出; - 一旦某人单日 Token 消耗异常激增,Dylan 就会亲自过问:“你用这些算力完成了什么任务?”确认产生高价值成果后才放行。 - 对于高阶分析或决策任务,快速生成推理内容是完全值回票价的;但反过来,对于普通海量批处理等不需要超低延迟的场景,市场绝不愿意为高昂的极速溢价买单,GPU 与 TPU 依然是性价比更优的承载平台。 Dylan 指出 Cerebras 面临的核心战略风险:超高吞吐的快速模式往往只有在搭载业界顶级的大模型时才能释放出真正的商业价值;对于边缘或小模型,客户对其极速推理的需求存疑(除极少数高频量化交易机构,如 Jane Street 的高频交易算法可能存在特殊需求外)。如何让超大尺寸芯片在推理经济学中精准卡位,是其必须面对的考验。 ### `40:00` 纯 SRAM 架构的局限与模型经济学的真实逻辑 纯 SRAM 架构芯片(如 Cerebras、Groq)在运行大模型与长上下文时面临极其严峻的物理与成本壁垒。若模型规模不断膨胀,不再只是几千亿甚至低万亿参数,而是跃升至 10 万亿(10T+)以上参数,再叠加高达 100 万(1M)token 的长上下文,这种模型结构在 Cerebras 这类芯片上几乎无法承载,在经济层面上也很难自圆其说。 ```mermaid flowchart TD accTitle: SRAM 架构在长上下文超大模型下的扩展困境 accDescr: 展示超大参数与长上下文如何突破芯片片上存储限制并导致经济效益崩溃的流程 subgraph Scaling["模型规模飞跃"] M1["参数量达 10T+"] M2["上下文达 1M tokens"] end subgraph Bottleneck["硬件物理限制"] B1["片上 SRAM 内存容量见顶"] B2["KV Cache 急剧膨胀超出存储"] end subgraph Outcome["商业与经济后果"] C1["跨芯片通信成本指数级激增"] C2["单 Token 运行成本失去经济可行性"] end Scaling --> Bottleneck Bottleneck --> Outcome ``` 现实中前沿实验室的收入与算力消耗绝大部分集中在顶尖的旗舰模型上。即便旗舰模型定价更贵,用户仍会蜂拥而上。Dylan 驳斥了单纯按“Token 数量”来衡量体量的做法,强调商业本质在于“美元价值总额”:正如美国汽车市场上,即使丰田凯美瑞(Toyota Camry)或 Mini Cooper 卖出了数十万辆,但福特 F-150 这类皮卡的平均售价(ASP)高出 5 倍,哪怕销量只有一半,皮卡仍是利润最丰厚的市场。同理,高价值的前沿大模型才是真正的商业利润核心。 主持人指出,Dylan 和 SemiAnalysis 区别于绝大多数分析机构的独特优势,就在于能将底层硬核技术与冷酷的商业经济学深度结合。Dylan 介绍,SemiAnalysis 目前约有 90 名员工,团队构成非常奇特:一部分是覆盖整个供应链的技术极客和工程师,另一部分则是对冲基金前从业者。团队日常经常就技术与成本展开激烈辩论: - 工程师会兴奋地坚持:“这项技术太酷了!” - 金融背景的分析师则立刻反击:“这根本无关紧要,看看它的成本代价。” - Dylan 笑称自己 12 岁起就做科技论坛版主,团队这种无拘无束的“互掐”氛围让他非常享受,正如俗话所说:“别和猪摔跤,因为猪会乐在其中。” --- ### `42:15` 半导体的认知雷区:从“AI 无 ROI”到复杂的万亿供应链 谈到半导体和 AI 领域的“暴论”,Dylan 直言最令他抓狂的论调包括: 1. **“AI 根本没有 ROI(投资回报率)”**:这种说法完全脱离了企业端和技术落地的现实收益; 2. **“大模型已经撞墙停滞”**:有人声称模型没有推理和思考能力、即将走到尽头,并拿出某些基准测试(Benchmark)未提升来证明。Dylan 犀利地反驳道,那些旧 benchmark 没提升是因为分数已经被刷到了 90% 以上(测试饱和),一旦换上具有挑战性的全新基准,模型能力的增长曲线依然呈现极其陡峭的“向上向右”(up and to the right)。 Dylan 坦言,半导体供应链极其庞杂深奥,他不会苛责普通人缺乏理解。即便他从 12 岁开始泡论坛钻研硬件已有 18 年,至今仍每天在学习新的认知。例如,他前一天刚了解到一种此前从未听过的化学材料,仅单一细分品类就在整个芯片制造行业中占据巨大的销售规模,并且是芯片上千道工艺制程(process steps)中不可或缺的关键一环。 主持人补充道,业内最荒谬的现象莫过于“手里拿着所有正确的事实数据,却得出了完全南辕北辙的荒唐结论”。Dylan 对此表示认同,处理这种认知偏差的最佳方式就是尽可能快速地用事实与现实去证伪。 --- ### `44:30` 十年维度的底层创新与先驱尝试 跳出近期的算力瓶颈,展望 10 年左右的长期技术演进,太空轨道数据中心(orbital data centers)和小行星采矿等宏大构想展现了 SpaceX 带来的惊人愿景。而在半导体硬件领域,Dylan 强调市场格局的剧变往往取决于一项技术的商业化时间节点究竟是提前还是推迟了一两年。例如共封装光学(Co-Packaged Optics, CPO),全行业都清楚它必将在本年代末实现,行业争议的焦点仅仅在于它落地的具体年份究竟是 2027、2028、2029 还是 2030 年。 在更底层的大胆颠覆方面,Dylan 谈到了 Naveen Rao(前 MosaicML 联合创始人)的新创业项目: - 该团队试图同时在三个维度进行跨层联合创新:**硅片物理层(Silicon Layer)**、**软件抽象层(Software Abstraction Layer)**与**算法模型层(Model Layer)**。 - 这并非一个能在 2 到 3 年内见效的短期商业项目,而是长周期的豪赌,试图将**模拟计算(Analog Compute)**与**基于能量的模型(Energy-Based Models, EBM)**结合起来。 - Dylan 评价:“这种尝试很可能最终行不通,而且绝对不可能迅速见效,但这极其令人兴奋。” Dylan 回忆起自己与 Naveen 的渊源,早在 2019 年或 2020 年左右(当时 Dylan 还在网上使用匿名身份),他在推特上发表观点“钓”到了 Naveen 的回复,随后两人转入私信(DM)并通了电话。Naveen 是 Dylan 在半导体行业内真正深度交流的第一位重量级大咖,他一直乐于提携发掘年轻一代人才,当年创办 MosaicML 时就展现出了超前的远见。 --- ### `47:10` 自研 ASIC 狂潮与英伟达的“全局最优”防线 在探讨各家大模型实验室与超大规模云厂商(Hyperscalers)的终局算力形态时,Dylan 预测未来每家巨头都将持续斥资百亿乃至数百亿美元推进自研芯片(ASIC)项目,但英伟达的通用计算卡地位依旧无法被轻易颠覆。 目前市场上绝大多数主力芯片的物理构造高度同质化: - **核心逻辑计算裸片(Logic Compute Die)**居中; - **HBM 内存**堆叠分布于左右及上下两侧; - 芯片顶部通常负责**高带宽网络互联(Networking)**; - 芯片底部集成 **PCIe 以及其他通用 I/O** 接口。 - 从 AWS Trainium、Google TPU 到英伟达的主流 GPU 和大部分初创企业芯片,基本都遵循这一经典布局(Groq 和 Cerebras 属于特立独行的异类架构)。 ```mermaid flowchart TD accTitle: 芯片硬件与模型算法协同优化的局部最优陷阱 accDescr: 展示自研ASIC陷入模型结构突变风险以及英伟达通用架构防御优势的对比逻辑 subgraph SpecializedASIC["巨头专用 ASIC 路线 (TPU / Trainium 等)"] S1["针对既有特定模型 (如标准 Attention) 深度优化"] S2["算法突变 (如注意力机制被颠覆)"] S3["陷入局部最优解 (Local Minima) / 硬件淘汰"] S1 --> S2 --> S3 end subgraph NvidiaRoute["英伟达通用计算 GPU 路线"] N1["庞大且异构的客户群"] N2["吸收全行业多样化反馈迭代通用架构"] N3["逼近全局最优解 (Absolute Minima)"] N1 --> N2 --> N3 end ``` 这种架构的深层矛盾在于**硬件协同设计极易陷入“局部最优解”(Local Minima)**: - **模型架构的不确定性**:前沿实验室的研究人员甚至完全不知道 12 个月后自己的大模型会采用什么结构。如果注意力机制(Attention Mechanism)突然被全新架构取代,专门为旧架构定制的专用芯片(ASIC)可能瞬间失去优势; - **英伟达的通用护城河**:由于英伟达服务于全行业极其庞大且多样化的客户群,能够吸收来自各方的架构反馈,因而在并行 AI 计算领域始终保持更强的通用性。相比某些只在特定场景表现惊艳但面临技术突变风险的专用硬件,英伟达更接近“全局最优解”(Absolute Minima); - **谷歌的多管齐下与算力短缺**:即便谷歌深耕 TPU 多年,依然不惜以每 GPU 每小时高达 11 美元的昂贵天价向 xAI 租借 GPU 算力。与此同时,谷歌内部并行推进了至少三套完全不同的 TPU 设计项目: - 与博通(Broadcom)合作研发的 TPU 架构; - 与联发科(MediaTek)合作研发的 TPU 架构; - 另一套处于保密状态、与前两者截然不同的全新自主 TPU 研发项目。 - 这证明各大科技巨头已经清醒地认识到单一专用芯片极易陷入局部最优陷阱,因此不得不同时在自研专用芯片(ASIC)与多功能通用 GPU 之间进行多头下注。 ### `50:00` 算力架构的多样化与前所未有的算力荒 随着 AI 市场的几何级膨胀,专用芯片与通用架构的分化愈发明显。尽管各大科技巨头每年在自研 ASIC 上投入数十亿美元,但任何单一架构都无法通吃所有工作负载。以 Google 为例,除 Gemini 和 DeepMind 核心团队深度绑定自研 TPU 外,旗下许多前沿探索业务(如 Waymo 自动驾驶或 AI 药物研发)在很大程度上依然高度依赖英伟达的 GPU。科学计算与通用大语言模型(AGI)在算法底层模式上存在显著差异,这种工作负载的多样性决定了硬件生态绝不会走向完全统一。即便英伟达、TPU 和亚马逊的 Trainium 瓜分了市场的大部分蛋糕,庞大的市场体量依然为利基芯片公司留出了自立谋生的垂直生存空间。 ```mermaid flowchart TD accTitle: 算力供需缺口与模型价值循环 accDescr: 展示模型能力扩展超越算力部署增速并引发算力短缺的传导机制 subgraph Capability["模型侧:能力与需求爆炸"] M1["新一代模型落地\n(如 Mythos / Fable)"] --> M2["可解决高价值任务激增\n(TAM 呈现非线性爆炸)"] M2 --> M3["Token 需求量激增\n(长推理与复杂 Agent 普及)"] end subgraph Supply["基础设施侧:供给面临瓶颈"] S1["数据中心建设持续推进\n(今年 20GW / 明年 30GW+)"] --> S2["供应链与电网建设普遍延迟"] S2 --> S3["算力供需缺口急剧扩大\n(单位算力租金飙升)"] end subgraph Capital["资本与再投资循环"] C1["Token 暴利与高毛利\n(Opus 毛利超 80%)"] --> C2["不计成本竞价高价算力\n(溢价扫货 GPU / TPU)"] C2 --> C3["巨头密集筹集巨额资本\n(发债 / 股权融资 / 变现资产)"] end M3 --> S3 S3 --> C1 C3 --> S1 ``` 而在供给与需求两端,全球正深陷于一场白热化的“算力荒”(Compute Crunch)。尽管全球每个季度部署的算力规模与新建数据中心数量都刷新了历史纪录——即使计入延期因素,今年全行业仍将交付约 20 吉瓦(GW)的数据中心容量,明年更将突破 30 吉瓦——但算力短缺丝毫不见缓解。Dylan Patel 指出,硬件工程层面的项目延期是客观现实,但更关键的驱动力在于前沿模型的能力扩展速度彻底甩开了算力建设步伐。新一代模型相较于前代并非简单的翻倍提升,其所能胜任的任务范围与潜在市场空间(TAM)呈阶梯式跃升,而全球物理算力的总和在过去大半年里根本无法跟上这种呈几何级数膨胀的实际生产力需求。 --- ### `52:12` 模型价值飞跃与 Anthropic 的惊人利润率 推动这轮算力抢购狂潮的直接动力,在于顶级模型厂商手中极其夸张的单位经济模型(Unit Economics)。以 Anthropic 为例,Dylan Patel 透露,该公司在今年第二季度已经实现了剔除股权激励(SBC)后的净利润扭亏为盈;按照当前的发展轨迹,甚至在第三季度有望将股权激励计入后依然保持整体净盈利。在 API 定价体系下,Claude Opus(例如 Opus 4.8)的单 Token 销售毛利率甚至高过 80%。“如果我的单 Token 毛利如此之高,那我就拥有极其强悍的支付能力,”Dylan 解释道。即便为了应对严峻的算力瓶颈,Anthropic 不得不从包括 SpaceX 等渠道以远高于市场基准的价格租借 GPU,其算力成本翻倍也仅仅是将单业务毛利从 75% 稀释到 50% 左右。 对于这类前沿模型厂商而言,算力采购逻辑早已脱离了传统的成本敏感区间: - **即买即赚的飞轮效应**:只要能租到额外的计算节点,就能够几乎零边际人力成本地立即将其转化为高毛利的 API Token 输出,直接拉动净营业收入(NOI)增长。 - **不计成本抢夺现存算力**:高昂的边际收益促使头部团队以“不论多少钱我都租”的姿态横扫市面上的可用算力。 - **渠道定价拉扯**:虽然 Anthropic 与亚马逊 AWS Bedrock 以及谷歌云 Vertex AI 的分发协议在一定程度上摊薄了其公司层面的综合毛利率,但其核心 API 的底层造血能力依然令绝大多数传统初创公司难以望其项背。 --- ### `54:20` 杠杆风险与“伪递归自我改进”循环 面对狂热的数据中心建设潮,红杉资本的合伙人们探讨了潜在的杠杆泡沫风险。Sonya Huang 提到,有消息称 Crusoe 等数据中心基础设施提供商的一家大客户已要求暂停某处数据中心的施工。生态链中人人都在举债扩建,这种“高杠杆加高增长”的狂欢往往让股权投资者背脊发凉。Shaun Maguire 则风趣地调侃 Sonya 应当重温“私募股权(PE)学院”的课程:“高杠杆高增长意味着微小的股权能博取极其巨大的上行空间!你做 VC 太久了,把杠杆收购(LBO)的核心逻辑给忘了。”Sonya 笑着回应自己当年其实正是 PE 出身,只是如今更聚焦于健康的营收倍数。 Dylan Patel 对这种担忧做出了客观剖析:当前的狂飙能否持续,完全取决于 SemiAnalysis 此前提出的“暗黑 GDP”(Dark GDP)命题——即 AI 模型能够撬动的经济实用价值总和,其膨胀速度能否持续超越物理算力的建设增速。过去六个月的实际情况表明,天平依然向“模型创造价值远超算力供给”这一端倾斜。虽然行业存在当前技术范式遭遇瓶颈的理论可能,但前线反馈完全相反: - **前线信心未见动摇**:无论 OpenAI 还是 Anthropic 的技术骨干,均坚信模型性能的扩展曲线还在继续昂扬向上。 - **伪递归自我改进(Pseudo-recursive self-improvement)**:行业模型迭代甚至比一年前更快,关键在于先进模型已经被广泛用于协助工程师编写底层代码、调优基础设施并加速下代模型的发布,形成了闭环自驱的飞轮。 --- ### `56:45` 资本狂潮与“每吉瓦算力”的石油经济学 支撑这场前所未有的大基建需要消耗极其惊人的资金。即使是坐拥巨额现金流的科技帝国,也不得不频繁走向资本市场。以 Google 为例,当年 Larry Page 曾代表公司以 100 亿美元估值向 SpaceX 投资 10 亿美元拿到 10% 左右的原始股权,即使历经稀释,这笔被 Shaun 赞为“人类史上最伟大投资之一”的资产依然为 Google 锁定了数百亿美元的潜在变现资金;然而在算力竞赛的宏大开销面前,Google 依然需要额外在市场上融资。Meta 近期的发债募资计划更是直接引发了二级市场股价的动荡,清晰折射出巨头们对于资本饥渴的程度。 针对不同算力基础设施的质量差异,Shaun 提出了一个类比石油工业的“算力均质性”猜想:沙特开采每桶石油的边际成本极低且杂质少、提炼难度低,那么数据中心领域是否同样存在“优质吉瓦”与“低质吉瓦”的天壤之别?Google 依靠自研光电交换机(OCS)和长期打磨的电网平滑技术,其建设的 1 吉瓦算力是否实质上比普通新云厂商(NeoCloud)的价值高出一倍? 对此,Dylan Patel 用实际的市场租金数据揭示了不同算力硬件与数据中心的真实价差: | 算力类别 / 交易案例 | 典型年租金基准(每吉瓦 / 每兆瓦) | 核心动态与背景特征 | |:--- |:--- |:--- | | **亚马逊 Trainium 芯片** | < $100 亿 / 吉瓦(Sub-$10B/GW) | Anthropic 与 OpenAI 签署的早期协议价格,Anthropic 深度协助亚马逊编写软件库从而换取了底价保护与灵活条款 | | **标准通用 GPU 节点** | $120 亿 – $130 亿 / 吉瓦 | 危机爆发前 NeoCloud 及亚马逊 AWS 对外出租通用 GPU 算力集群的标准行业报价 | | **极端供需挤压下的 GPU 溢价** | 约 $250 亿 / 吉瓦(即 $2500 万 / 兆瓦) | 算力荒高峰期从特种渠道(如涉及 SpaceX 与 Google 的算力交易)紧急锁定的超高溢价租约 | Dylan 指出,现实中由于算力短缺持续加剧,Trainium 的市场公允价值如今早不仅限于此,而这种因工程能力、网络架构成熟度以及芯片利用率带来的巨大分层,正让算力资产呈现出极其显著的阶梯式溢价。 ### `01:00:00` 算力地产的电力溢价与电网套利把戏 在数据中心主机托管(Co-location)的底层商业模式中,交易的核心往往不是具体的算力服务器,而是纯粹的电力接入能力,行业通常以“每月每千瓦美元”($/kW/month)作为计费锚点。过去,这一基准价格大约稳定在每月每千瓦 60 美元,但随着 AI 爆发引发的供需失衡,现在的交易价格普遍飙升至 120 到 160 美元之间。这种定价存在极大的品质与信用分化:如果租户本身的信用评级较差,哪怕数据中心质量尚可,租金甚至会被叫到 200 美元的高位;反之,若在电网极度不稳定、网络连接欠佳且设施平庸的地区(例如印度部分地区),价格依然可能低至 80 美元左右。 数据中心开发建设领域充斥着极高的项目流产率。市场上充斥着投机者——常常是“四个人的小团队宣称自己交了定金订购了几台燃气轮机,准备建一座大型数据中心”,结果工程工期不断拖延,最终彻底烂尾。为了理清真实供给,SemiAnalysis 建立了一套严苛的数据中心追踪模型,依据设备采购进度、交付滞后期以及团队执行力对所有在建项目进行概率加权。 相比普通玩家的磕磕绊绊,头部科技巨头的玩法则进入了另一维度。以 Google 为例,在拥有 1 吉瓦(GW)供电指标的数据中心里,他们往往敢于塞入超过 1 吉瓦额定功率的硬件设备。普通数据中心的电力利用率通常只在 60% 到 70% 之间徘徊,但 Google 凭借对从底层硬件到上层工作负载的全局把控,能够敏捷地在不同任务之间调度电力,从而将实际功耗常态化拉满到整整 1 吉瓦。巨头们甚至会与电力公用事业公司达成极为激进的特殊协议: > “公用事业公司会说:‘这个电网常态下能承受 1 吉瓦负荷,但除了一年中的某三天外,其实完全可以顶到 2 吉瓦。’于是巨头就提出:‘那就直接批给我 2 吉瓦,到了那三天你通知我关闸就行。’” 为了兑现这种协议,运营商必须在现场部署自建燃气轮机、庞大的电池储能系统以及精妙的负荷切断与容灾备用方案。这种电力套利手段让运营商在物理资源受限的情况下,实际卖出了远超纸面指标的有效电力容量,从而在能源层实现了惊人的超额回报。 - **托管电价分化**:基准价格从历史上的 $60/kW/月 上涨至当前主流的 $120–$160/kW/月,劣质信用客户可能承压高达 $200/kW/月,而电网基建薄弱地区(如印度部分地区)低至 $80/kW/月。 - **动态电力超配**:通过工作负载调度与本地调峰电池/发电机,将原本只有 60%–70% 负载水平的设施拉满至 100%,甚至利用并网柔性协议在非峰值期以 2 倍额定容量运行。 --- ### `01:02:40` 算力变现效率的差异与 SpaceX 的隐秘优势 在物理数据中心与能源层,商业逻辑相对“非黑即白”——要么拥有电力按时交付,要么陷入延期泥潭无法发电;但在算力层,变现逻辑与使用效率却呈现出巨大的梯次差异。从单纯的产出回报率看,“把 1 吉瓦算力分配给 Anthropic,其所创造的实际业务营收客观上要显著高于分给 OpenAI”。当前由于全球算力极限、API 频率限制(Rate Limits)以及单会话 Token 上限的存在,无论是 OpenAI 还是 Anthropic(尤其是在 Claude 3.5 Sonnet / 新一代编程模型表现极其亮眼之后),手中的算力只要一上线就会被瞬间抢购一空。 如果把这 1 吉瓦的算力交给 SpaceX,硬件的实际利用效率可能会被拔高到大多数人意想不到的水平。外界往往严重低估了马斯克旗下团队的跨界工程积淀:一方面,SpaceX 凭借星链(Starlink)网络体系积累了极其深厚的大规模分布式组网与高吞吐网络架构经验;另一方面,特斯拉在整车电气系统与储能电网领域沉淀了行业顶级的高压电源管理技术(业内像 Brett Mayo 这样的核心工程元老具备极高水准)。 这种资本与工程的鸿沟同样体现在新型算力云与传统巨头的竞争中。以新型算力云提供商 CoreWeave 为例,尽管经 SemiAnalysis 实测,其 GPU 集群的硬件计算性能与网络稳定性客观上已经超越了亚马逊 AWS、Google Cloud 或微软 Azure,但其业务模式受限于资产负债表:CoreWeave 必须在数据中心上线前 6 个月就预先售出算力,然后拿着客户签署的意向合同向金融机构申请债权融资,以此套现来支付早已向芯片厂下达的设备采购订单(PO)。相比之下,拥有雄厚资产负债表与充沛现金流的巨头(或 SpaceX 这种工程怪兽)可以直接宣称:“机架已经通电跑起来了,要买就立刻掏钱。”这种底气直接放大了它们每兆瓦功耗所能榨取的即时营收能力。 ```mermaid flowchart TD accTitle: AI 算力供应链与变现路径对比 accDescr: 对比 CoreWeave 的预售融资模式与具备充沛资产负债表巨头的现货部署模式 subgraph CoreWeave["新型算力云 (CoreWeave 模式)"] CW1["签署远期算力租赁协议 (提前 6 个月)"] --> CW2["以纸面合同作为信用抵押进行发债融资"] CW2 --> CW3["支付硬件采购订单 (PO) 并交付上线"] CW3 --> CW4["性能/可靠性优于巨头,但受资本流转制约"] end subgraph TechGiants["重资产巨头 / 垂直整合团队 (如 SpaceX)"] TG1["强大的自身资产负债表 / 现金储备"] --> TG2["硬件预先采购、建设并直接带电部署"] TG2 --> TG3["结合顶级电网管理与星链级自研网络经验"] TG3 --> TG4["即时提供现货算力,实现极高的单兆瓦变现效率"] end ``` --- ### `01:04:45` 传统超大规模云厂商的陷阱与 NeoCloud 的崛起 回顾云计算发展史,五年前的行业共识曾是“超大规模云厂商(Hyperscalers)将毫无悬念地通吃一切”。然而,在 AI 浪潮下,专注于 GPU 的新型算力云(NeoCloud)却以黑马姿态迅速杀出重围。这种格局转变的根本原因,在于传统通用 CPU 云时代的成功路径依赖,在 AI 时代反而异化为了致命的技术包袱。 早在 2023 年,Dylan Patel 就曾撰写了一份轰动行业、甚至引来亚马逊强烈不满的研报《亚马逊云危机》(Amazon Cloud Crisis)。在传统的 CPU 虚拟化时代,AWS 凭借自研的 Nitro 网络接口卡(NIC)构筑了极宽的护城河——Nitro 负责承载所有的管理程序(Hypervisor)与多租户安全隔离,从而让服务器所有的 CPU 核心都能满额对外出售;同时 AWS 大规模采购原始 NAND 闪存颗粒自制企业级 SSD 以打下存储成本,并开发 Graviton ARM 架构 CPU 来降低单核算力功耗。然而,这套为传统企业 IT 打造的精密体系在分布式 AI 训练与推理中彻底失效了: 1. **虚拟化开销拖垮通信性能**:Nitro 这类以安全隔离和分时切片为核心的网卡架构,严重拖累了大规模 GPU 并行时对极低通信延迟与极高吞吐的要求,其实际网络表现明显落后,即便迭代数次后依然存在短板。 2. **多租户安全假设不复存在**:AI 算力出租根本不需要将单一 GPU 拆分成碎片分时复用给数十个用户;客户通常是一口气整租一台 8 卡服务器、整座 72 卡 NVL 机柜、乃至由数百台机架连成的集群,租期动辄数月或数年。传统云厂商引以为傲的多租户安全隔离机制变成了毫无意义且消耗性能的累赘。 3. **数据中心扩张步调失衡**:在过去业务线性增长时,微软自主建造数据中心确实能节省可观成本;但当生成式 AI 要求年度产能指引翻倍增长时,传统基建团队的缓慢节奏导致交付严重受挫,不得不紧急转向第三方算力云采购转租容量以救急。 与庞大官僚体系中“按部就班领薪水、项目早一天晚一天上线都不会发财”的传统云厂商员工不同,像 Crusoe 这类由联合创始人 Chase Lochmiller 等人领导的 NeoCloud 团队,充斥着高杠杆的股权激励机制与不顾一切的生存饥渴感。这群从加密货币与比特币挖矿领域厮杀出来的团队,早已在极端剧烈的市场波动中被锤炼出超常规的建设速度。当巨头还在走合规审查流程时,他们已经在日夜兼程将供电、机柜和光纤接入阵列,硬生生从传统云厂商眼皮底下撕开了一片庞大的生存空间。 - **传统 CPU 云 vs AI 云需求冲突**: | 评估维度 | 传统超大规模 CPU 云体系 (AWS / Azure) | AI 原生算力需求 (NeoCloud 体系) | |:--- |:--- |:--- | | **网络硬件重心** | 依赖 Nitro 等定制智能网卡,强调多租户虚拟化与安全切片 | 依赖无损超低延迟网络(InfiniBand / RoCE),拒绝虚拟化额外抖动 | | **租用粒度与周期** | 单核/单卡细粒度切分,按小时或按秒分时出租 | 整机柜、跨机架大规模整包包下,长期固定租约为主 | | **组织与交付动力** | 大型跨国组织合规流程漫长,工程师交付速度与个人暴富弱相关 | 高股权杠杆创业团队,脱胎于加密货币基建的极致交付饥渴度 | --- ### `01:07:05` 黄仁勋的四维博弈:打造多极化 AI 世界与终结云垄断 对于 NeoCloud 的爆发式增长,Shaun Maguire 尖锐地发问:这究竟在多大程度上是英伟达 CEO 黄仁勋(Jensen Huang)在幕后操盘的一场“4D 国际象棋”?Dylan 直截了当地指出,黄仁勋打心底里厌恶一个由亚马逊、微软和谷歌等超大规模云厂商全盘掌控算力话语权的世界: > “对黄仁勋来说,一个只有 OpenAI、Anthropic 和 Google 闭源模型的世界,是一个他迟早要被彻底拿捏的世界;一个只有三大传统超大规模云厂商在采购算力的世界,同样是一个他会被玩死的世界。” 这就是为什么黄仁勋甘愿将大笔资金砸向各种看似激进的新兴 AI 实验室,在世界各地不知疲倦地游说各大财团为这些公司注资,并不遗余力地支持中国开源模型团队与非闭源生态。他的战略终局是“亲手塑造一个多极化的 AI 世界(Multipolar World)”。 在芯片供应极度紧缺的当下,英伟达将一块 GPU 卖给 Crusoe、CoreWeave,或是卖给 Google、AWS,纸面上的出货价格或许别无二致。但在五年后的战略棋局中,每一块倾斜给 NeoCloud 的 GPU,都在直接削弱 Google TPU 与 Amazon Trainium 等云厂商自研定制芯片的自给自足闭环。更多推理与训练需求若能流向开源社区和独立云平台,英伟达的护城河就越坚不可摧。为此,黄仁勋不惜调动最宝贵的 GPU 稀缺配额作为战略武器,甚至亲自为核心 NeoCloud 的集群融资提供信用兜底。 在这个野蛮生长的“西部荒野”里,并非所有人都能活下来。早期的投机者中绝大多数已经销声匿迹,但活下来的幸存者正在蜕变成行业中坚:Crusoe 早期利用油田伴生气(Flare Gas)发电挖矿,如今摇身一变成为顶尖的高密度绿色算力中心建设者;CoreWeave 最初是由对冲基金交易员转行挖矿的草根团队,如今却凭借对 GPU 底层集群极深的技术打磨,成为全球最具统治力的新一代算力巨头之一。 在模型层(NeoLabs),这套物竞天择的逻辑同样在重演。尽管外界媒体经常大肆渲染某些初创团队“核心骨干流失、高管出走”,但底层的商业吸金能力却令人咋舌——例如由顶尖华人研究员创办的 Thinking Machines(其开发的产品如 Tinker 等),在产品面世不足半年的情况下,就以迅雷不及掩耳之势斩获了数亿美元的年度经常性收入(ARR)。黄仁勋将算力与资本的“鱼饵”泼洒在这片广袤的海域中,只要能有数个顶级团队成功突围,传统巨头编织的封闭闭环就会被彻底撕裂,英伟达便能稳坐多极化算力帝国王座。 对话的尾声,主持人 Sonya Huang 与 Shaun Maguire 动情地向 Dylan Patel 表达了敬意。他们坦言,外界或许只看到 Dylan 和 SemiAnalysis 在过去几年顺应时代风口名声大噪,但真正熟悉他的人都清楚,这份惊人的洞察力和准确度,是他十余年来在半导体与硬件产业链最脏、最累的角落里疯狂深耕、日夜兼程熬出来的必然结果。这绝非单纯的“在正确的时间出现在正确的地点”,而是一场极度坚韧的长期专业主义胜利。 ## Notable quotes > `00:00` 别和猪摔跤,因为猪乐在其中 — Shaun Maguire > `15:52` 这就像我开着一辆保时捷,去跟一位专业赛车手比圈速一样不公平 — Dylan Patel > `22:00` 我们可以毫无阻碍地将海量电力源源不断地倾倒给计算集群 — Dylan Patel > `23:45` Shaun,我完全不同意你的看法。 — Dylan Patel > `23:45` TPUs suck at running DeepSeek — Dylan Patel > `38:40` 你用这些算力完成了什么任务? — Dylan Patel > `44:30` 这种尝试很可能最终行不通,而且绝对不可能迅速见效,但这极其令人兴奋。 — Dylan Patel > `52:12` 如果我的单 Token 毛利如此之高,那我就拥有极其强悍的支付能力 — Dylan Patel > `01:00:00` 公用事业公司会说:‘这个电网常态下能承受 1 吉瓦负荷,但除了一年中的某三天外,其实完全可以顶到 2 吉瓦。’于是巨头就提出:‘那就直接批给我 2 吉瓦,到了那三天你通知我关闸就行。’ — Dylan Patel > `01:02:40` 机架已经通电跑起来了,要买就立刻掏钱。 — Dylan Patel > `01:07:05` 对黄仁勋来说,一个只有 OpenAI、Anthropic 和 Google 闭源模型的世界,是一个他迟早要被彻底拿捏的世界;一个只有三大传统超大规模云厂商在采购算力的世界,同样是一个他会被玩死的世界。 — Dylan Patel ## Mentioned Dylan Patel, Shaun Maguire, Sonya Huang, SemiAnalysis, 红杉资本 (Sequoia Capital), 黄仁勋 (Jensen Huang), NVIDIA (英伟达), OpenAI, Anthropic, Google (谷歌), DeepSeek, CoreWeave, Crusoe, Nebius, SpaceX, Meta, Amazon AWS (亚马逊), Microsoft Azure (微软), Oracle, TSMC (台积电), ASML, AMD, Intel (英特尔), Broadcom (博通), MediaTek (联发科), Cerebras, Groq, 阿里巴巴 (Alibaba / Qwen), 月之暗面 (Moonshot / Kimi), 智谱 AI (Zhipu.ai), Naveen Rao, Chase Lochmiller, Larry Page, InferenceX, Hopper (H100), Blackwell, Rubin, Google TPU, AWS Trainium, NVLink, PyTorch, vLLM, SGLang, Claude / Claude Opus, GPT-4 / GPT-4o, Gemini, Gemma, Starlink (星链), Nitro, SPIE ## Video description Dylan Patel, founder of SemiAnalysis, argues the biggest gains in AI don't come from faster chips, they come from software-hardware co-design. Optimizing the model, the kernels, and the silicon together turns a 2x here and a 2x there into 100x. He explains why DeepSeek's experts were shaped for Nvidia's Hopper (and why TPUs struggle to run it), why OpenAI's sparser models and Anthropic's denser ones pull them toward different hardware, and why the so-called CUDA moat was never really about CUDA. Dylan breaks down InferenceX, his living benchmark that runs the latest models on over $50M of donated hardware daily, tracking a roughly 60x annual drop in cost per unit of quality. He makes the case that inference will be a bigger market than oil, that the compute crunch persists because models expand the value of useful work faster than compute grows, and why Jensen Huang is bankrolling neoclouds to engineer a multipolar world. Hosted by Shaun Maguire and Sonya Huang, Sequoia Capital [Source](https://pscrb.fm/rss/p/traffic.megaphone.fm/CPUAI5467568199.mp3)

Source quotes

[0:00] Shaun Maguire: 别和猪摔跤,因为猪乐在其中 [15:52] Dylan Patel: 这就像我开着一辆保时捷,去跟一位专业赛车手比圈速一样不公平 [22:00] Dylan Patel: 我们可以毫无阻碍地将海量电力源源不断地倾倒给计算集群 [23:45] Dylan Patel: Shaun,我完全不同意你的看法。 [23:45] Dylan Patel: TPUs suck at running DeepSeek [38:40] Dylan Patel: 你用这些算力完成了什么任务? [44:30] Dylan Patel: 这种尝试很可能最终行不通,而且绝对不可能迅速见效,但这极其令人兴奋。 [52:12] Dylan Patel: 如果我的单 Token 毛利如此之高,那我就拥有极其强悍的支付能力 [60:00] Dylan Patel: 公用事业公司会说:‘这个电网常态下能承受 1 吉瓦负荷,但除了一年中的某三天外,其实完全可以顶到 2 吉瓦。’于是巨头就提出:‘那就直接批给我 2 吉瓦,到了那三天你通知我关闸就行。’ [62:40] Dylan Patel: 机架已经通电跑起来了,要买就立刻掏钱。 [67:05] Dylan Patel: 对黄仁勋来说,一个只有 OpenAI、Anthropic 和 Google 闭源模型的世界,是一个他迟早要被彻底拿捏的世界;一个只有三大传统超大规模云厂商在采购算力的世界,同样是一个他会被玩死的世界。

Source quotes

[36:00] Dylan Patel: And certainly the CUDA moat and software moat is at least partially disentangled because models are just great at coding and all software gets commoditized in that case. [51:00] Dylan Patel: The model is so much better and it can do so many more tasks that the TAM for it is way larger... The world's compute did not double in that same timeframe, but the demand for useful tasks that can be done by AI has.

Original transcript

[0:00] I think it's really fun inside of Semi-Analysis because we have 90 people and like a big chunk of them are technologists, engineers across the whole supply chain. And then a big chunk is people who are formerly at hedge funds. And you see these arguments like people are like, oh, well, that doesn't matter. And it's like that someone's like, well, but cost. And then the engineer is like, no, no, no, but this technology is the coolest. And you see this organically like fight it out. And we're pretty informal. And, you know, given the fact that I was a forum moderator, you can imagine what this internal track looks like. Well, you're enjoying it. you don't wrestle with a pig because the pig enjoys it. We're here in the semi-analysis office with Dylan Patel. I'm Sean from Sequoia. I'm a partner, or Sonia Huang. It's pretty insane what you've done. Semis five years ago were not very sexy in the West. They were sexy in the East, but people here in the West had kind of forgotten about them. You did not forget about them though You went very long You created probably the premier research company in the space that been educating the world and you know the state of the art from very technical details to supply chain you know to the bigger picture There's rumors that Semi-Analysis recently passed $100 million of revenue. I don't know how accurate those are. Whatever the numbers are, you guys are crushing. It's as accurate as the information is, you know. You know, you never know. There's also rumors that you might start a venture fund. like you know i i hear all the time in the ecosystem people wanting you know affiliation with semi-analysis you've you've built this trusted brand and so whatever you do it's working it's clearly like just the beginning of the journey for you congratulations on that but how did this happen like how did you first question is like what is the background how did you kind of get to where you are now well when i was a young boy and you know coming out of the womb No, no. So, okay. So I grew up in like a small business. My parents had a motel. We lived in the motel. We laid our gas station. So, you know, I was selling, you know, I joke a lot of times the first neural network I trained was racially and visually profiling people based on when they entered the gas station, which cigarette to pick. Basically you know the cigarettes were all extrude across the top And I was too short to actually like you know reach them And technically it wasn legal to sell cigarettes at that age but whatever I had to move the stepstool over to the right area I started working my first office before it was legal too So it was a good experience. Well, I didn't get paid, right? It's a family business. But yeah, we have a motel and then across the street was our gas station. So, you know, sometimes, you know, someone would walk in. And so like if an old white lady with curly hair walked in, I'd move the ladder or the stepstool over to where the camels are. And if, you know, And, you know, different age, demographic, profession, you know, race, et cetera. I would move the steps to all over. And I joke this is the first neural network I trained because if I waited for them to tell me, I'd have to, like, move it over. And then I'd step up versus, like, just being ready. So, you know, menthols versus, you know, 100 slims and all these things. You know, I think I joke this is the first neural network I trained. But I grew up in family businesses, lived in a motel. And it all really goes back to when I was, like, you know, it was my eighth birthday. My birthday is in May. and it was April when the Xbox 360 was announced. For my birthday, I didn't ask for the Xbox or I didn't ask for a birthday gift. My parents asked what I wanted. I asked for it for Christmas. We celebrated Christmas, but there was no way, at least at the time, I thought there was no way they would ask, would give me the Xbox 360 for Christmas. And so I got it for, asked for my birthday for tab for Christmas Anyways Christmas comes around I get it You know fast forward a couple months my cousin who lives in Alabama they also lived in a motel was going to come over for spring break for his spring break and we were going to hang out at my house. And he's in between me and my older brother in age. Brother's a bit more jockey, so he didn't really care too much about the Xbox. He played sometimes, but didn't really care. But my cousin, I wanted him to think I was cool, right? So I bragged many times on the phone. I was like, yeah, I got an Xbox. And then the Xbox broke. There was something, there's a hardware defect called the red ring of death. But long story short, I had to open it up and, you know, short the temperature sensor and it fixed it. But there was many other tricks I tried first and then other than worked. And so that's sort of how I like got into hardware is like open Pandora's box. By the time I was 12, I was like on these forums a lot, reading, posting a lot. And this is around the time when Reddit ate all other forums. And so I became a moderator of, you know, Android and Apple and Google as well as like hardware and was watching, you know, looking at Intel, NVIDIA and AMD and all these other forms. Right. So I was built a PC, all these forms. I was watching, reading, posting a lot, but some of them I was moderating a lot. And so, you know, smartphones, watching smartphones develop from like very simple to speed racing to being technologically more advanced than PCs in many ways, architecturally. And same with like, you know, all the GPUs, like just tracking and watching that, reading every content. [5:00] I'm always having the economic tinge because I grew up in a small business. So I was always looking at the economics, right? There was a time where all the, like, let's say neckbeards on the internet loved AMD GPUs. And, like, I personally had bought an AMD GPU, too, because price performance. But then when it came down to, like, what's technically better, I'd always be like, no, no, no. NVIDIA is better because they use a smaller chip to get, you know, better performance and better power efficiencies and their margins better. And so I would always talk about how NVIDIA's margins were better than AMD's in the GPU landscape. And so it was very fun. And you were 12 at the time? I started moderating when I was 12, but this is all through my tween age and high school years, right? Do you have any other weird hobbies or was it just semis? I played a ton of StarCraft at one point. I was a grandmaster on the North American ladder. Oh, wow. I'm serious. So you've been just obsessively good at multiple things. Yeah. I mean, obsession is good. How were your grades? They were decent. I would say like I had mostly A's, but they're classes that I like were thought were really boring or, you know, just didn't enjoy. Like Spanish I got like not the greatest grades you know but it was like I speak fluent Spanish by the way so it really dumb But like it just sort of But maybe that why you didn get a good grade No I didn learn Spanish until later to be fair But yeah, so it was sort of my grades were fine, right? Like, I mean, like, they were fine enough for Asian parents. I was better than most of school, but, you know, it wasn't like, you know, try hard maxing for like, you know, all A's. Okay, so you're very much a student of the internet, Ben. This is how you develop this expertise. At what point did you decide to start semi-analysis? And what's been the biggest surprise since starting the company? Yeah, so I went to school. I got a few degrees in stuff that wasn't related to semiconductors. Was a quant for two years at a small quant risk firm. And then basically, you know, there was a culmination of events that happened, right? One was that my, you know, sort of like I got screwed out of a bonus. I'd made my company many millions of revenue, of risk-free revenue, because I exploited like a risk thing in the market. I think well over 10 million. And then someone else took credit for my work and all this sort of stuff. But eventually I did get right-sized, but I lost the social contract with the company I was working with. Add some, my grandparents grew up in my house with us, or in the motel with us. They lived with us and so very close to them. And my grandmother got dementia and she forgot who I was And she fell down some stairs and had like a tragic accident and passed away So all of that happened in early 2020 Additionally there were some like you know girl things And so you know there a few things that happened that made me like kind of very sad And so all of those things sort of culminated. Then COVID happened. And my brother's like, dude, just come stay with me. He lived in Nashville. So I came and stayed with him in Nashville. We were like, oh, lockdowns will be a few weeks. You can stay with me while they happen. And then you can go back home and, you know, whatever. Famous last words, lockdowns lasted much longer. But living with my brother for a few months, it was sort of like, okay, I didn't know what I was doing. I was now at my brother's home. Everything was his rules, sort of like him and his fiancee at the time, now wife, were like there. And so I basically had to tiptoe around, but I didn't care about my job. And so I was like posting even more than normal. I'd always been posting a lot on the internet. I'd always been trading stocks a lot. But I made a lot of money shorting COVID and long in COVID and all this stuff. Semiconductor shortages happened around then too. And anyways, I was like very much obsessed with posting and things like that. And eventually, around that time, someone, I got into an argument with someone on the internet and they doxed me, right? They publicly revealed my identity for my anonymous account. And at the time, I was like, oh, no, I'm scared. I stopped posting for like three weeks. And I was like, what am I doing? Why do I care So then I just started posting under I had like blogs and stuff as well I made a real blog semi And on my 24th birthday I posted um you know two blogs And, and then from there, it just like, it was not a newsletter, but I got so much traction because now instead of posting on anonymous name as a real name, and I put a lot more effort into those two posts than I usually did instead of like shit posting on the internet, it was like real effort into the blog. Um, you can actually go back and read those if you want. they're not that great, but you know, they were, they were good for the time. They're the best stuff you can find on the internet about some of these. Um, and, and I just kept posting, posting, posting. I started getting a lot of consulting business, you know, 2020. I also sort of, I was again, crashing out, didn't know what I wanted to do. So I, uh, packed everything up or sort of, I, I took my truck. I bought a tent that fits on the back of the tent truck, um, bought an air mattress, whatever, and would like, and drove around all these national parks all around America. And so like two or three or four days of the week, I'd stay in a random motel where I negotiated the price to be like $30 a night for a room. And I was working on semi-analysis stuff. And then the weekends I'd read books and oftentimes read textbooks while in some random national park or hiking and listen to audio books about semiconductors, about AI, about all the things that I cared a lot about and got way more educated over these six months where I'm just like going to every national park. And then the whole time I was alone. I was alone the whole time. I was posting blogs. [10:00] Everyone was like, Dylan, what the f*** are you doing? Pre-Star Link or the very early days of Star Link? Pre-Star Link, pre-Star Link. Yeah, so it was like very much like, what are you doing? I travel around LATAM again like for a year, initially with my friend and then with my ex, you know, for, you know, about a year. And then I go, then 22, 23, 24, end of 21, 22, 23, and 24. I'm completely, I'm still completely homeless since mid-2020, right? But I'm traveling around to every conference in the world. I go to 40 plus conferences a year, no matter where in the supply chain it is. I'm like, oh, that looks interesting. I guess I'll go to that. And I'm like, I went to one conference like, wow, this is amazing. You get to talk to the experts and they just like, they're going to talk to you because, and then you're so excited. And in the case of semiconductors, everyone's a boomer. So it's like, it's great to like, you know, they're like, they don't see young people who are like excited about it. So they're really happy to tell stuff. And so you just have to ask on this, was there like a part of the supply chain or one of these conferences that, that particularly changed your view of the semi-world or that you felt then or feel now is particularly underrated? I think the trade shows and conferences range really widely Obviously the ones I have the most fun at include NeurIPS Why is that Because it 20 AI researchers and they generally in my distribution of age range So it like a lot of fun but they also like leading AI researchers and it a lot of fun and you learn a lot. Um, there's also a lot of parties and then it ranges all the way to like, you know, there's random chemical conference in Japan where it's 300 Japanese dudes. It's like 20 guys from ASML, 20 guys from TSMC, 20 guys from Intel. And those are the only people who speak English. everyone else speaks only Japanese and you're like, I guess there's still pretty interesting and fun. I think, I think like one thing that I have a, like a skill set of is like, I'm able to bond with anyone regardless of their background and like who they are. I'm able to talk to them, find something interesting to talk about. Oftentimes it's the tech stuff, but you know, it's, it's, and so I think like the most interesting conferences are oftentimes like, you know, the really big ones because that's where the biggest stuff is happening. But I think the niches that are really, really exciting is like, you know, SPIE. so there's IEEE which is International Electrical Engineering something and there's SPIE which is another ecosystem SPIE conferences are super super deep in details every single one that I went to especially like SPIE Advanced Lithography or SPIE Photo Mask I went to them the first time I didn't even understand 90 what I heard and then I read read read read I made some contacts of course and the next time I went I understood like half of what I went to Third time I went I understood like 75 of what I went to Even now I went and I was like I still don understand everything that going on Whereas like you go to like NeurIPS, you know, a couple of times you can understand, okay, what's neuro symbolic reasoning? Okay, what's this? What's that? Like you can kind of get a mapping of what everything is pretty quickly. But some parts of the supply chain are so arcane and so deep and so technical. It takes a lot of times for you to even understand what's happening on everything, right? for every research paper. It doesn't necessarily mean you didn't, you know, you go to a conference for a few reasons, right? You understand the research, you understand, but like, it's all the research that's being published. But what you really care about is understanding how does that research intersection, intersect with technology. Also, how does that research differ from what's there today? And none of these research papers tell you what's happening today. But then you just ask people and you build contacts and you learn, and then you like learn about the supply chain and, oh, this company supplies this company, even though it's not publicly stated anywhere. Like, you know, you learn that the, the, this chemical is like cost about this much and a tool uses about this much. And you look, you hear the horror stories of like this chemical had a shortage and it totally threw off this part of the supply chain. And then it turns out there's only three companies in the world that make that chemical And it like my favorite one is I learned uh a Japanese guy at that specific Japanese uh conference that I went to to where almost no one spoke English In very broken English he told me about how his father worked in this industry in the 1980s that the only factory in the world that built this chemical burned down, and that caused memory prices to double or triple. And I was like, wow, not too different from today. Not at all. That's crazy. inference going to be the biggest market on earth, the biggest market beyond earth. Agree or disagree? I mean, obviously use of tokens is going to be the biggest market. And the value that's created from tokens is going to be the biggest market. But I think tokenomics, sort of the use of tokens, adoption of AI sort of is the most important thing that's happening. And inference, whether it's open models or closed models, will be like one of the biggest markets in the world. Much bigger than oil, I think much bigger than like, you know, many other parts, like inference of AI will be, you know, many percentage points of the GDP. Yeah. Right. What you've done with inference X, I think is, you know, industry standard, maybe say a word on why you started it, what it does. And, you know, what do people misunderstand about performance benchmarking on inference? Yeah. So, so to zoom back, right. Like semi-analysis, we do a lot of stuff. That's like, you know, a lot of it is like research for institutional clients and, and our subscription first products, but a lot of it is also like, Hey, you know, this would just be [15:00] to figure out. Let's figure out how to figure it out and just post it publicly. And that gets, you know, more and more scale. And so we've done this with a lot of GPU benchmarking and testing and training performance and inference performance. But, you know, ultimately we saw like inference benchmarking was like point in time, you know, you test it and you take some time and you release it and it's like slow and arcane and outdated because models change all the time. Every, I feel like every week there's a new model, whether it's a Chinese model or, you know, today Mythos 5, Fable dropped. And new models are coming out all the time. On the software layer, PyTorch, VLM, SGLang, new drivers, new something drops. In fact, the update cycle for most of these libraries is twice a week. So you basically have the software updating all the time and therefore performance changing. New inference optimizations are coming out, and those get updated. And so I feel like it's a relentless breakthrough after breakthrough after breakthrough that keeps driving efficiency and cost down, which is why we've seen model costs drop for equivalent quality by 60x a year. It's incredible. But to stay on top of that, you can't have point-in-time benchmarking. You need to have benchmarks be living and breathing, i.e., constantly running on the latest hardware, on the latest models. And so we embarked on a project and we got a lot of buy from the ecosystem This was only possible because we had enough aura with some of the ecosystem where we were able to get CoreWeave and Crusoe and Nebius and Oracle and Microsoft and Amazon and Google and OpenAI to contribute to us compute And then we were able to work with SGLang and VLM and now Radix Arc and Infraact, which are the private companies who are sort of leading those efforts, the open source efforts, to collaborate with us. We were able to get NVIDIA and AMD and Google and Amazon now because we're adding TPUs and Tranium to collaborate. Now we've got all these people collaborating. We've got over $50 million of hardware donated to us. Once we launched TPUs and Tranium, it would actually be over $100 million of hardware, maybe about like 15 different chip types, all running these benchmarks. every single day on all the latest model, right? The best model for Moonshot, the best model from Alibaba, the best model from, there's about five different Chinese models, the best open source models, the best Chinese labs there. We run benchmarks on their models every day, and then also the best US open source models, GPT-LSS, Nemotron, etc. So we're running these benchmarks every day in an automated fashion, and they run on these servers that are dedicated to us for inference benchmarking, and we sweep across so many different configurations and optimization types. And then what it creates is and all the results are public and all the configurations are public So now we have the Pareto optimal curve because a lot of times when people are comparing inference performance they like taking a suboptimal curve or point for someone else and comparing it to their optimal one It's like, well, yeah, I can make I can stick. You know, if I drove a Porsche versus like some race car driver, obviously I'd drive it slower. The same thing with inference benchmarking. And so what we did is we created open source, basically containers for the optimal points across every point on the interactivity, i.e. how fast is it responding to me versus batch size, i.e. how many users am I simultaneously serving curve. And so now anyone who wants the optimal point can just go to inference X, download it, and run that as the optimal point. And they can check every day if they want, or they can even auto-download the most optimal point for that model. And their inference performance will be near peak. Is that curve the most important curve, in your opinion? The throughput interactivity curve? Yeah. I think most things in hardware, infrastructure, model, application layer, everything is downstream of that curve, right? Is it something that needs to be super, super fast, super low latency, and I don't really care about the cost, so I make batch size very low and I use techniques like speculative decoding or multi-token prediction heavily and there so many possible techniques there Or is it something where actually I batch processing a ton of documents and I don really care about all these things I don use these techniques that actually are worse on cost efficiency to help you with speed for an individual user because I just want to pack a bunch of users. I don't care if the document takes all night to process, right? And right now, the way we treat AI infrastructure is it's like one size fits all. But over time, we're going to get to the point where there's stuff where you have batch workloads or you need instant response. And there's the whole curve that's going to matter for users. And so we see this with Anthropic, right? Cloud code, fast mode costs way more than regular mode. And same with OpenAI's priority queue thing. Sorry, dumb question. How does cost factor into the start? So if I, let's say imaginary example, I have a batch size of 100 and I can do 10 tokens per second per user. So in total, I'm doing a thousand tokens per second off of that one piece of compute. That's one side of the curve, super slow, 10 tokens per second. Other side is I have 500 tokens per second, but I can only have one user. And so maybe 250 tokens per second, one user. And then there's points on the middle that are more freudal optimal, right? The average person actually wants like 50 or 100 tokens a second, and maybe the number of users I can batch together. So the curve is, okay, 1,000 tokens total per second or 250 tokens per second, [20:00] per second, depending on how many users I batch and there's a curve in the middle. And so ultimately some workloads will actually want the 4x cost decrease because the same unit of hard work can do a thousand versus 250. And some users, I'll pay 4x more because I don't care about the price. I care about time because the person using the tokens is expensive or the feedback loop that I have here is expensive. If you had to guess, you choose the timeframe, 10 years or 15 years, what percent of inference compete do you think will happen in space? It can be 0%, 50%, 99%. This is a tough one. So I think the non-consensus, or at least against SpaceX thing, I love SpaceX, by the way, and I totally would buy the IPO if I could buy stocks. Non-investment advice. Thank you. Thank you. Not investment eyes. From Sequoia. I don't think that space data centers will really matter in the next, three to five years. With that said, I think in 20 years, I think the vast majority of compute will be going in space And so the real factor there is sort of what the cost It the timeframe It the cost of building power on terrestrial land and how much power you going to be able to do on terrestrial land And I think obviously my views of where inference you know you know how many gigawatts or terawatts are devoted to inferences It a crazy curve for me personally. What's your forecast? How many gigawatts are? Yeah, I think, I think by, you know, 2030, just open ion anthropic will have over a hundred gigawatts combined. And then you'll add, you know, meta and Google and, you know, so on and so on and so forth. It's a humongous amount of compute that will be dedicated to inference. And by 2040, it'll be terawatts, right? The curve of productivity that we're going to get, and so inference deployments is going to be huge. And so if you look at 2040, I think probably more than half of the incremental compute will be going in space. But if you look at 2030, I think it's sub 1%. Do you think intelligence per watt has been increasing? And then it seems like there's still a giant gap between where we are, intelligence per watt versus human biology. And so if we are do you think we are to close that gap? And if so, where is that game going to come from? Yeah, I think it often depends on what you're doing too, right? Like a TI-84 is way more intelligence per watt in terms of doing math than us. That's like 30 years old, right? So obviously this is like a dumb, dumb, you know, sort of- General intelligence there. Yeah, but general intelligence wise. So one of the things InferenceX does is we also measure the power and cost of all of these this hardware And so we offer not just you know throughput versus interactivity we offer cost versus interactivity We offer power versus interactivity And so as far as has intelligence per watt been increasing, I mentioned it's been a 60x cost decrease for same benchmark level. We've also seen the same on intelligence per watt. It's not been exactly 60x, it's been closer to like 40x. Some of the efficiencies are non-power ways. But there's been a humongous improvement in intelligence per watt on an annual basis, at least so far this year, last year, year before, year before. And I expect that to continue. As far as where we are from the human brain, we're many orders of magnitude away. Thankfully, it doesn't really matter. We can devote a lot of power to computers, much easier to power computers than human brains. We have sickness, disease, and food preferences. Sleep. Exactly. Let me just ask one more question on on this general theme, in my opinion, in terms of like, you know, intelligence per water, intelligence per dollar, like any of these metrics, I think there's kind of three levels of input. You can get hardware improvements where the hardware more efficient You can get low low systems optimizations like kernel improvements major multiplication libraries things like that Or you can get high-level, model-level algorithmic improvements at the highest level. To me, it seems like in the last three years, most of the gains have come from hardware level and some from the model level. do you agree with that? Do you think that's what it will look like in the future? Do you think there's a bunch of juice to squeeze in a kernel level? Yeah, Sean, I completely disagree with you, by the way. Great, that's why I'm asking the question. Okay, so I think one way is to look at it as these three different layers. And in that sense, from Hopper to Blackwell, which is all we've had over the last three years, roughly 30x improvement on DeepSeek, on the most optimized deployment, which is, you can see on inference X, there's about a 30X improvement. But over the last three years, we've had way more improvement intelligence per watt. A lot of that coming from the model layer, right? If you look back three years, it's GPT-4. Now it's like maybe like one of the smaller QN models that's like 27B parameters total and like 2 billion active is like way better. And so you've got this huge improvement. [25:00] on model layer. You've got this pretty sizable improvement on hardware, but it's that co-design layer. And I think that's what's important, right? If you look at the architecture of any of these models, but DeepSeq is the most famous one, at least that's public and people have seen it. DeepSeq got huge efficiency gains from co-optimization or kernel level, optimizing memory. Yes, I think it's like kernels, of course, but it's actually you build the hardware architecture for the chip. So if you look at the shapes of all the experts in DeepSeq, V3, they were all optimized for Hopper. And if you look at for V4, they're optimized for Blackwell and Huawei's chip. And what's interesting is despite the fact that TPUs are objectively an amazing chip, you know, and they run all of DeepMind and they do all the training for Anthropic as well, on the pre-training side, at least, TPUs suck at running DeepSeq. But they are really, really great at running other kinds of models that don't run well on NVIDIA. There is some level of such deep optimization that has been done, whether it be shapes, uh, network IO, uh, patterns, you know, how you do the collectives, how you do, um, things around, you know, the, the arithmetic intensity of the attention mechanism, all these different things are co between the model and the and the and the hardware and the infrasoftware in between And it it hard to say you can disentangle the games Do you think that my understanding is that China has done this a lot better than the West the last few years? And the Deep Sea was one of the first models to really do this? I don't necessarily think so. I think it's more so that the West doesn't tell people what they do. OpenAI didn't tell people that GP40 was how sparse it was, what the shape size was, all these things. But GPT-4.0 is roughly the same size, slightly smaller than DeepSeq v3. And 4.0 came out a little bit earlier, if I recall correctly. So is your view that all three of these things have been happening simultaneously at roughly the same rate and the biggest gains are when you just co-optimize? Yeah, I would say there's been more gains on the model layer than on the software infrastructure layer and the hardware layer. But there's been innovations on every layer and really the biggest gain and the beauty of the best labs is when they co-optimize all three. You know, and that's what like, you know, when Anthropic is, you know, even though they use many different kinds of hardware, they don't really inference too much on TPUs. They mostly train on TPUs and they inference a lot on Tranium and GPUs and GPUs are more the jack of all trades but they optimized their hardware they optimized their model they optimized everything so they can do that Whereas OpenAI their prior models were optimized for Hopper more now they more optimized for Blackwell and you step forward through time these labs, and the same with Google, right? They've optimized, you know, Gemini 2 was really optimized for the TPU V6E, or Gemini 3 was, and then Gemini, you know, the next Gemini that's coming out is really optimized for TPU V7. And so sort of like a lot of these things are being co-optimized. And actually, when you pull that model and put it running on the old hardware, it's really not that great. And so I think a lot of this co-optimization is the most important thing. It's called software hardware co-design. And that's, what's like really exciting about like, you know, sort of what, what, you know, I think my day-to-day is like, you know, great. You get to look at one layer. There's all these innovations happening here. There's all these innovations happening on every layer, but the real breakthrough innovation is when you leapfrog a few layers, you co-optimize and co-design them. And now all of a sudden you've, you've taken what could have been a two X here, two X here, two X here. And instead of being multiplicative to eight X, it's actually a hundred X because you've optimized it across all three layers. And so that's, So it's really exciting about sort of like what you see at the labs, what you see at like a company like NVIDIA, who not co on the model layer per se but a little bit from the model layer all the way downstream to you know silicon or you look at a company like TSMC they co not just you know fabrication but all the way from the components and the consumables and the tools all the way upstream to what the designs their chips or the customers are telling them is this co across many layers of the abstraction stack There will always be bottlenecks somewhere in that optimization that they're like lagging behind and then need to get pulled forward. you know and band-aids to you know if you had to predict like what are at any level of the stack it can be literally anywhere what are some of the bottlenecks your most like you're kind of tracking most acutely the next year and not necessarily in the supply chain not in like scale but in terms of the actual um and it can it can be in the supply chain too but just like is it memory improvements? Is it that just scaling loss? Memory is an easy one that everyone's talked about, but I'm not going to talk about it from a supply chain angle. I'm talking about it from a technology angle. Memory capacity and bandwidth have been improving very slowly. The NAND cell was invented 25 years ago. The DRAM cell was invented 40 years ago. There's been no major breakthrough in cell like what a NAND cell is. Obviously, NAND is a very simple gate. Or a DRAM cell. [30:00] There is stuff that could come down the pipeline that could be hugely innovative. But even over the last five years, all we've really done is make the HBM more stacks faster. But actually, there's new innovations coming in the next few years where instead of stacking the HBM separately from the chip, you stack the memory directly on the chip, and that makes your bandwidth explode. And so there's interesting companies in that space and interesting POCs that companies are trying to do there. I think memory bandwidth is one of the biggest. Another one is for the history of silicon, basically over the last two decades at least, how many watts a chip is can be easily predicted just by looking at it for a data center or desktop chip. It peaks up at one watt per millimeter squared. And so if a chip is 100 millimeters squared, generally the power consumption is around 100 or a little bit less. And if you look at the newest NVIDIA silicon, the newest TPU silicon, it's still on that range of one watt per millimeter squared. So chips are now getting to 1,400 watts. The next generation is 2,000 watts for NVIDIA with Rubin and such. And you move forward to Rubin Ultra, it's going to be like 4,000 watts or something like that. But really, there's increasing the amount of silicon. What exciting is we now finally doing things and it in development right now where you actually can pump the amount of power into the silicon to be way more more than one watt per millimeter squared And now that all of a sudden means you need less silicon. Obviously, it's running at higher power and it's less efficient in some cases, but you reduce the amount of silicon and you're able to like overcome certain problems. Thermal issues, there's interference of like electrical interference issues. There's all sorts of different issues that crop up and that's why it's a hard engineering problem. That's why we've stuck at about one. But what's exciting is the world is trying to change these things. I think interesting, like in a different part of the supply chain is sort of like, you know, people, people will talk about like energy is hard and, you know, we have energy bottlenecks and it's like, yeah, but there's actually like very simple solutions, you know, one could think of, right. Take the millions of diesel engines for trucks that the U.S. has the capacity to make. You can very trivially convert them to be using for gas in the assembly line and then stick them up to a electrical motor, like back driving it. So the electrical motor generates electricity rather than the electrical motor causing the rotation of the wheel, for example, but doing it the opposite direction. And now you've generated electricity by pumping gas into something that US can make millions of And then okay well that sounds like a pain in the ass to service right Because now you have to have hundreds of these on a data center site Well actually you can just pull people out of car mechanic shops and have them run around and repair truck engines Actually, it's actually pretty trivial. I don't want to say it's trivial. I couldn't do it. I think you're making a really good point, which is that because the West wasn't really thinking about semi-guns even harder more broadly the last 20, 30 years, we didn't have much innovation. We've got the best minds thinking about how to improve these things. Why would you want to go work in hardware when you can make ads, sell ads? Yeah, exactly. Okay, I'm dying to ask. NVIDIA versus TPU. What are your thoughts? I think everyone wants to pick one or the other for this, but it's really a function of like, look, you look two years from now, Google is going to make 10 plus million TPUs through their supply chain, and NVIDIA is going to make many more tens of millions of GPUs and both are going to be $100-plus billion. Well, Google's going to be $100-plus billion of TPU created a year, and NVIDIA will be $500-plus or whatever it is. I'm not making a specific estimate. It's not a revenue forecast. This is just a thought experiment. Yeah, our research has that. Sean, you've been media trained so well. Absolutely. Getting ready for the SpaceX IPO Are you guys big in SpaceX Yeah Okay so that makes sense We very lucky to be very large investors Awesome awesome So I would say the case of sort of like Google TPUs versus NVIDIA GPUs they both have like points that are really like in their favor, right? You know, NVIDIA will be like, oh, we have switches and we're general purpose. And TPUs will be like, well, we're more optimized. We're actually more energy efficient. and our network is actually more optimized for certain types of network architectures. And so you have these counterpoints that both would really get into. And I could, with a straight face, argue with you that GPUs are way better than TPUs or TPUs are way better than GPUs, but it comes down to hardware software co-design. So actually the way OpenAI's models are headed, it would be a terrible decision for them to use TPUs potentially. And the way that Anthropic and Google's models are headed, it's actually a terrible decision potentially for them to train with GPUs. I mean, it'd be fine for them to try. How wide is that? What's the fundamental difference there? There's various things, right? Like the size of the matrix multiply unit is different as a very simple thing. And therefore the shape of the matrix multiply you do, the attention mechanism you use, the way that attention mechanism is structured, the way the experts are structured. So you think, so OpenAI and Anthropic are converging to very different model architectures? I think they have quite different model architectures, in fact. Interesting. [35:00] are much more sparse and that has benefits. And then Anthropics are, you know, they're still sparse, but more dense in general. And that has different benefits. And there's many other things, right? The network topology, right? NVIDIA, all of their chips are connected to switches, NVLink switches. For Google, they have no switch. But what they've done is they've been able to, you know, NVIDIA, the NVLink can only connect 72 GPUs. For Google, their ICI can connect 8,000 chips at super high bandwidth, but you have to pass through other chips to get there because there's no switch. And so there's like, there's trade-offs there, there's positives and negatives, and that influences the model architecture. It's not necessarily that you should, you know, claim one is better than the other, because at the end of the day, how do you say that this is better than that when you can't measure them in isolation, because it also extends up to the model layer, right? But I remember for a long time thinking, you know, one, the programmability of NVIDIA and then just CUDA as such a big moat. It seems to me that narrative has kind of changed, at least in my mind, for the last three or six months. Like model companies no longer care about, if we have to write custom kernels for this other chip, so be it, we'll work with four or five chips if we have to. Cloud and Codex are actually quite good at doing a lot of that optimization work And so it seems like some of the and then it you know it not like there 10 model companies that are each you know each need programmability There's on the order of tens maybe model companies. And so it seems to me that like if you, the fundamental premise of like tens of thousands of big customers that need CUDA compatibility, like it seems that kind of thesis is changing. Yeah. I mean, And certainly the CUDA mode and software mode is at least partially disentangled because models are just great at coding and all software gets commoditized in that case. I do think there is some level of open source. And what people call the CUDA mode is not actually anything to do with CUDA. But it's like the fact that DeepSeek, Kimi, and Zipu.ai, and Alibaba, and Tencent, all these companies. Xiaomi had an awesome model recently. their models are a co-design for GPUs. And therefore, if I want to run them on TPUs, actually, in some cases, they don't run really well on TPUs. Now, Google just has to create their own open source model ecosystem or open source models themselves. So they have the Gemma models. And so you end up with like, well, that's not really CUDA as a moat. It's that the downstream product is more optimized for NVIDIA. And in these cases, these companies are open sourcing them or like Nemotron is just open sourcing it And then the users of it for example to open the inference API providers the RL companies that are trying to take open models and customize them for companies business use cases All these different companies are downstream of the fact that like, okay, well, I guess I need to use NVIDIA. Because the ecosystem uses NVIDIA, even though I don't particularly care about writing CUDA kernels, because the models are great at that. But it's like the shape of like, well, this expert, the DMOD is this, and the hidden dimension, blah, blah, blah, is this, right? And so therefore, it's better to run on NVIDIA GPUs than it is on TPUs, and vice versa, right? If Google were to actually open source really good models, this would be the same thing, right? People would take their models, and they'd be like, oh, wow, these don't run that well on NVIDIA GPUs. I should actually just rent TPUs or buy TPUs and do it on there. For small teams, you're going to want to use all the open source software like VLMSG laying, PyTorch, all that stuff. But the big labs they don necessarily need to use all that right OpenAI forked PyTorch long ago and Anthropic and all these other people don necessarily rely heavily on the open source implementation of these things They forked things or built it on their own already And so they don need to rely on the open source And therefore now it more like I choose the best hardware and I co my model and infrastructure software through and through for that hardware that is the best and most cost efficient And I have AI help me write all that software What do you think of Cerebris I think Cerebris is a really innovative company I think in some spots of the market they're really, really good. Very fast inference. I think that's a big market. We use fast mode almost exclusively at Semi Analysis. But I love how disciplined you've been about accounting for, I don't know if that was one exhibit you did or if you do it consistently, but accounting for the dollar spent in the ROI on each task. It's an awesome analysis. Yeah, we do it pretty diligently. So thank you. That was the dark GDP article that we wrote. And also track everyone's token spend by day. And if someone's spiked up, I'm like, what did you do? It's like, okay, thank you for telling me that that seems worth it. Cool. On with my day. I think fast mode is obviously worth a lot for high-end tasks, right? I can just see so many different use cases where super fast tokens are worth it. I can also see the flip side where there's a lot of use cases where super fast tokens aren't needed and therefore the market won't pay for them and they'll use GPUs and TPUs instead. I think the big risk for Cerebrus is I mostly think the best models are the ones that you want to use fast mode on and small models you necessarily might not use fast mode on. I could see that being wrong with financial markets maybe or something like that, like a Jane Street HIF. [40:00] frequency training or something like that, or medium frequency training. But ultimately, you know, running really large models at really long context is very difficult on SRAM-based chips like Cerebris, like Grok. And so now it all of a sudden is like, you know, what happens then if like the models get too big, right? If OpenAI's model is not, you know, on the order of, you know, hundreds of billions of parameters or, you know, low trillion parameters, but it's actually 10 plus trillion parameters. Now, all of a sudden, I don't think that that will fit on Cerebris, And then if that doesn't – with a long contacts length, if you have a million contacts length, now that makes it really difficult to justify. And so far, we've seen the bulk of revenue and usage at the labs be on their best model. Even when the model price has gone up, we've seen that. There's some data that shows that even though Fable just released today, they've had incredible amounts of people switch to Fable and Mythos, sort of that next-tier model, even though it's way more expensive. And so, um, that's volume by dollars totally, but without volume by tokens. Well, I guess who cares about volume by tokens is about the dollars, right? If I don't care that there's, you know, uh, you know, I don't know, 200,000 mini coopers or Toyota Camry sold if, if, uh, you know, I don't know, four, four, one fifties are five X ASP and they sell only half as much Okay Right And therefore the most lucrative market is pickup trucks in America right Mostly being facetious but like I think this is one of the things that you done so well and differentiates you from almost everyone else is that you care so much about the economics in addition to the technology. And I think very few people bridge those two things well. Yeah, thank you. I think it's really fun inside of Semi-Analysis because we have 90 people and like a big chunk of them are technologists engineers across the whole supply chain. And then a big chunk is people who are formerly at hedge funds. And you see these arguments, like people are like, oh, well, that doesn't matter. And it's like, then someone's like, well, but cost. And then someone, the engineer's like, no, no, no, but this technology is the coolest. And you see this, you see this organically like fight it out. And we're pretty informal. And, you know, given the fact that I was a forum moderator is, you can imagine what the, the, the, you're enjoying it. You don't wrestle with the pig because the pig enjoys it. Exactly. On this topic, before I go into the next question, are there like trigger topics in semis for you? You know, like if someone's, which is like such a meme, you think this person must be a moron. Like if, you know, if it's like, oh you like memory is the bottleneck I mean it true but like I think moreover the one that really gets me is people are like AI has no ROI It infuriates me, right? Like there's like, what's the ROI? Or like denying model progress, right? There's these people that are like, models aren't getting better. They're not reasoning. They can't think. They're going to dead end and plateau. And it's like, bro, the line has been up and to the right in terms of capabilities this entire time. And they're like, look, this benchmark didn't improve. That's because it said 90%. percent. Look at the new benchmarks. Yeah. You saturated. Now they're skyrocketing, right? It's like, I think that's more so the issue and challenge. Like I think semis are really complex and I don't fault people for, um, lacking like understanding of it. Like I learned stuff every day about the semiconductor supply chain from people. And I've been studying it for, you know, arguably 18 years since I started moderating the forms when I was 12, right? Like, you know, I've arguably been studying it for that long, but even then, it's like live, breathe, and that's all I care about. But there's so many layers of the abstraction stack. It's like, I learned about a new chemical that does like $100 billion of sales yesterday. And I'm like, whoa, didn't know this one existed and what process it did. But it's like, you learn about things all the time. It like okay billion sales in a couple hundred billion dollar industries whatever But like you know it like But it essential It essential And it like actually every chip requires it It like wow I guess there are a thousand process steps It's like, oh yeah, you like semiconductors name every process step. It's like, no, come on. What I think is the most funny is when people have all the facts in front of them and then they get the conclusion completely wrong. And that's what happens in our job all the time too. Yeah, yeah. I mean, I think my attitude is not to be mad that you do that. to do it as fast as possible. I think the industry, because it's so, it's just like AI is the most important thing in the world right now. And there's so many near-term bottlenecks. We talk a lot about the near-term. Are there longer-term things that you're really excited about? Like say on a 10-year time frame, we talked about orbital data centers, but like Silicon Metallinex, you think they're underrated or overrated on a 10-year time frame? Are there other things that on a 10-year time frame- Yeah, I mean, I think space is like super crazy awesome in the 10-year time frame that I'm, for space data centers and all these sort of mining asteroids and all these things, which is super excited about the vision of SpaceX, right? Again, not investment in advice before you hop in. I think on the semiconductor side, tremendous market movements and tremendous things can happen just when things happen one year later or sooner. And so that's all technology that in terms of co-packaged optics, like, well, everyone knows it's going to happen, [45:00] the end of the decade. The debate is like 27, 28, 29, 2030. But some point along there, it's going to happen. I think the more interesting thing is like, there's companies like, did you guys invest in Naveen Rao's company? We did. Okay. Yeah. So I think like he's trying to innovate on like the silicon layer, on the software abstraction layer and the model layer simultaneously. And he fully understands that it's not like a, you know, we're going to do this in a few years. It's not a two-year timeframe. Yeah. It's not a few-year timeframe. It's a long-term bet. And like stuff like that is like, okay, we're going to bring like potentially like analog compute with energy-based models and like all this crazy shit all at once. It's like, that's exciting. Probably won't work, but you know, that's exciting. And I like really look forward to it. And it definitely won't work quickly. Yeah. It definitely won't work quickly is what I should say. I believe in Naveen and like, you know, I, I, I met him very, you know, I think he's one of the first people I met in the industry. Funnily enough, like in 2020 or 2021, actually 2020, it says something about him. I think he's someone in my experience, he's always trying to- I baited him on the internet. I baited him on the internet, that's the case. He's always trying to help the younger generation. He's trying to identify talent. He's also so ahead of his time with Mosaic. I remember getting pictures No he was 2019 I was still anonymous then actually I baited him on the internet and he started replying and then I just took it to DMs and then took it to a call And that was the first person who was really important that I talked to in the entire semiconductor industry. That's funny. But yeah, sorry to interrupt. That's funny. What do you think is the end state of the ecosystem? Do you think every lab, every hyperscaler just has its own chips? Like, Tranium seems like it's now working, right? So do you think we end up with every lab, every Hyperscale has own chips, at least for inference, and then maybe for training you go to NVIDIA or whoever? What do you think is the end state? I think everyone will try and they won't stop trying. I think ultimately, you know, supply chains matter. What technology you can bring in matters. And more and more as the industry gets bigger, supply chain diversification happens. You know, right now, everyone's chip more or less looks the same. It's a big logic compute die in the center. And there's some HBM on the right and left and on the top and bottom. Top side is networking. And then the bottom side is PCIe and other IO. And that is the exact same structure for Tranium, TPU, NVIDIA chips, and most of the startups. Not Grok and 3Risk. Those are doing weird shit, but that's cool. I think as you step forward we going to get more bifurcation of hardware architecture and model architecture And therefore people are going to co them And you know some of them will end up in local minimas right You know as we you know if it like gradient descent like people are trying to go to the most optimized solution Some people will race to a local minima, and then the question is, like, how do you scoot back over to, like, the absolute minima? And to some extent, like a general, NVIDIA will always be more general purpose than anyone else's chip in general, at least on a parallel AI compute basis because they have so many customers who care about different things. They will always give them feedback in the design. You know, the minima will always be better than them. But is that minima a local minima? Like is the TPU or Tranium or Grok or Cerebris or whoever's design optimized awesomely for here, but in the end state, actually, you got to go over here. And so they're the wrong. and maybe they make a great time. They're great for a little bit of time, but then they end up being wrong. It's like, that's the real question. And so I think there will be a big market for general purpose AI compute because you talk to people at labs, they don't even know what architecture they're going to be doing in a year. Like, right? Like they literally don't know what architecture they're going to be doing in a year. They have bets. They have many research bets and that's this exciting thing, but they don't know where it's going. Generally they like know what hardware they have and they trying to co But ultimately like if a new breakthrough happens on model architecture it like replace the tension mechanism with something else right Who knows Or you know all of a sudden you know something happens the best hardware will change And therefore, like, are people going to make five-year investments on hardware solely on, you know, an ASIC that is more specialized or are they going to have some bucket of more general purpose compute? And so you see this with like Google is paying $11 an hour per GPU to XAI for GPUs, right? Like that's insane, right? That's a very high amount of – obviously compute is limited and so on and so forth. But it's like very like insane, but at the same – despite the fact that they have TPUs. And so there's like some questions there like why do they do that? Google actually has three different design programs for TPUs. They're making a TPU with Broadcom. That's a different architecture than a TPU with MediaTek. That's a different TPU than the architecture that is – I won't disclose by research. But they're making different architectures. It's not just like, oh, they're making TPUs with a couple vendors and it's the same architecture. It's different architectures. And the third one is a very different architecture from the first two. And so I think people recognize that the local minima can happen. And therefore, I think everyone will have their own ASIC program. I think everyone will deploy billions of dollars of their own ASICs, tens of billions of dollars. In the [50:00] dollars a year of their own A6. But ultimately, they're also going to have workloads that don't use TPUs, right? Some of the Google bets that are not Gemini DeepMind actually primarily use GPUs. They don't use TPUs. Some of them also primarily use TPUs, right? It's a bit of a broad thing, but maybe for drug discovery or for Waymo, you might not want to use TPUs. I don't say which one it is, but there's different architecture bets and different paths for AI. AI for science may have different algorithmic patterns than general intelligence AGI models. And so I think we'll see diversity continue to proliferate. Yeah. And because the market has gotten so big, niches will be carved out. And so that makes it possible for companies to have their niche and actually make money, even if the majority of the pie goes to NVIDIA and TPU and Tranium. Okay. Love that. Can we talk about the data center build out? Like, one, it seems like, I mean, by all accounts, if you look at the charts, like dollars per computer hour, we are in the middle of a crazy compute crunch. And it seems like it's both a demand and supply side crunch, right? Like demand for long-rise agents skyrocketing, supply, all these data center build-outs are delayed. Do you think this is going to compute crunch for the foreseeable future or do you think it alleviates at some point Yeah so every quarter we deploying vastly more compute than the prior quarter and there more data centers built than the prior quarter This year there going to be 20 gigawatts even accounting for the delays And next year there's going to be more than 30 gigawatts accounting for the delays. Of course delays happen on everything, right? Anything hardware can have a delay. That's just the reality of life. Are we going to have a compute crunch for the rest of our lives? It depends on what happens with models, but like the TAM for Mythos, you know, Mythos 5, Fable 5 is not just like 2x that of Opus, right? The model is so much better and it can do so many more tasks that the TAM for it is way larger than that. And yet computing the world did not double in the last, you know, six months, right? From, you know, Opus or maybe like seven or eight months since Opus 4.5 would launch to now. Huge, you know, 4.6, 4.7, 4.8 were improvements, but Fable and Mythos were like a huge step function improvement. The world's compute did not double in that or quadruple or whatever in that same timeframe. But the demand for useful tasks that can be done by AI, the number of useful tasks and the value of them that can be done by AI has. And so now the question is, what happens? Well, obviously, Anthropic in Q2 is profitable. They net income profitable excluding stock compensation And I think by Q3 they may even be profitable including stock based compensation That like how profitable they getting and their margins on an Opus token at least Opus 4.8 token is like north of 80% for the API price. They've got a lot of deals where their total corporate gross margins gets clawed down a little bit because of like how they do bedrock deals and vertex deals and things like that. But ultimately, their per token margin is so high, well, then if you don't have the capability, they have the capability to pay. Ultimately, every GPU they buy at above market rate, you know, they also bought GPUs at above market rate from SpaceX, which is below the rate of Google, but that's because they signed earlier. You know, it's something that, you know, other companies, maybe a venture-backed company or company that's not really got positive margins, can't necessarily do, right? What is the cost benefit ratios? Like every GPU I rent, because I'm out of compute capacity, I can immediately turn around and sell tokens on it, or every TPU or every Tranium, I can immediately sell tokens on it at a positive margin. And if I'm running 75% gross margin and I double the cost of the compute, it's fine. I'm still running 50% gross margin. And spinning up more compute nodes is not really necessarily a human requiring task for them if they're renting them. And so ultimately it's like, well my NOI still goes up right And so I going to rent GPUs at whatever price at some level whatever price I can pay I have almost a reverse question of like at some point does this compute build go bump in a night Earlier today, I think there was a tweet like Crusoe publicly said one of their customers had asked to halt construction on one of the data center build-outs. It seems like everybody in the ecosystem is so levered right now to like, we got to build, we got to build, we got to build. High leverage, high growth to me is like, makes me very, very nervous as an investor. Wait, hold on. high leverage, high growth means small amount of equity has huge upside. You're not a debt investor. You're an equity investor. You got to go to the school of private equity. Levered buyouts only. I actually come from a school of private equity. Oh, awesome. She forgot the school. She's been a VC for too long. No, I just do revenue multiples. Do you see any signs of that? Are you worried about that? I see what you mean, right? And that sort of goes back to the model point, right? Obviously, if the models expanding the total economic valuable work, that's sort of the dark GDP report that we did and that you mentioned earlier. If the work that these models can do does not expand faster than the compute capacity, then that tide turns, right? And over the last six months, that tide has been very much levered in the direction of [55:00] You know, the models can do more work or are expanding their TAM of work they can do faster than the compute is increasing. And so prices go up. It's very possible that all of a sudden model progress stops. You talk to anyone at Anthropoc or OpenAI, maybe they're drinking the Kool-Aid, but you talk to basically all of them, they're like, no, no, no, no, model progress still go up. And so, you know, ultimately, you know, current methods could stall somewhere. I'm not sure where that would be. it seems like we have line of sight to model improvement, rapid model improvement. And in fact, models are improving faster than they were six months ago or a year ago because there's, I wouldn't call it recursive self-improvement, but basically the engineer, the models are helping write all the info and launch the next model sooner and sooner and sooner. So you've got this pseudo-recursive self-improvement loop going. And so the models are getting better and better and better, faster. But ultimately, capital is a big problem, which is why Google raised capital. They've got a godly amount of SpaceX, right? They own like 5% of the company. I think a little more, but yeah. I think at one point, they had like 10%. Larry Page invested a billion dollars at a $10 billion valuation, got 10% of the company. It got diluted, like all this. But that was one of the greatest investments of all time. Good job Larry They got a good missionary So they know they have like billion in the bank that they can sell in nine months or whatever from the lockup And they have all the gross profit they do And yet they still modeled that. And they're like, we need to raise capital. And so they did an offering. And it's like, that's insane. So that tells you how much they think they need to spend. But capital is like really, you know, Meta did announce that they're going to do a raise. Stock tanked. People don't like it. But, you know, that's all these companies are going to raise capital, whether it be debt or equity, at some point, money spigots will have to slow down. But right now, every GPU that Amazon adds, they're making higher revenue or every TP or Tranium, whoever anyone adds, is making gross profit. I'm going to do a little bit of a T up on this to turn it into a question for you. But as we talk about this, for me, the thing that's going through my head is almost an alternative hypothesis for like the Crusoe example. I'm using an analogy in oil. Like in oil, Saudi Arabia has way lower costs per barrel to produce oil than a lot of other countries. There's also like the purity of the oil. A lot of, you know, Saudi has generally like very low contaminants in their oil which makes the refining easier all of this The question for me is like when you look at for every gigawatt that being put in the ground I called the 20 gigawatts coming online today How much homogeneity do you see in those gigawatts Is it something like, and you can tell me whatever metric you think is right, but are Google's gigawatts two times more valuable than, say, most NeoClouds because they have optical switches and they've been doing it for a long time and they know how to do power smoothing because i think this could be the alternative hypothesis that some of the people that are it's like the people that are good at building data centers they should they should just do it to the max because there's so much demand and there's so much better than it but then maybe we're starting to see the early signs the people that are like not as good at it kind of getting hit a little so i don't know the reality i'm just curious yeah how do you think about that. So far, there are metrics for this, right? So Tranium sells at sub $10 billion per gigawatt rental rate to Anthropic and to OpenAI. GPUs, at least before the craziness of the last six months, usually went around $12 to $13 billion per gigawatt. So the rental rate, and this is from a NeoCloud versus Amazon even And now when Amazon sells GPUs they also be 13 or so And my understanding of that also is that those numbers like Amazon subsidized that a little bit So that it I actually think the numbers were even like I think the disparate is even more It's less than 10, it's less than 10, but there's like some weird, basically how much. And like, look, my understanding, like Anthropic played a big role in making Trainium useful in terms of, you know, writing all the libraries, etc. And so everything I hear is that Tranium is really freaking good hardware, and it's getting way better. And obviously, Anthropik is now using it a lot. So hopefully, we would see that price go up. The deal they did was actually there was a floor mechanism. And if it didn't do well, it would be cheaper to the point where it's cancelable. And if it did really well, the price is kind of higher. But effectively, less than $10 is where Tranium shakes out at. Whereas GPUs, I mean, the SpaceX deal again was like 25 or something crazy, billion dollars per gigawatt or $25 million per megawatt, right? A year rental rate with Google. I was like, that's a crazy divergence. Now, obviously, if Amazon was selling Tranium today, it'd probably be more expensive than 10 because of the compute shortages. But you do see this already in the sense of with data centers. Oftentimes, the rental price of a data center. [60:00] doing co-location, right? Not compute in there, but just power. Here's the data center. You price it generally on a dollars per kilowatt per month. And so they used to be $60 per kilowatt hour per month. And now you see things transacting at anywhere from like 120 to 160. But different quality data centers, this actually, I've seen data centers go as high as 200 when the customer is not such a great credit rating. And then the data centers are pretty good one. And I've seen stuff go as low as a hundred still, or in like India go like as low as 80 because the grid's not reliable. The internet connection is not great. And it's a pretty mid data center, but at least it's a data center. And so you see this huge discrepancy there already. In the case of like data center construction, usually the pitfalls, they just fail. There's a lot of people who have failed, you'll claim they're like four guys. They're like, yeah, we heard I bought some turbines. I put the money down for them. I'm going to build a data center and then they get delayed, delayed, delayed and fail. Um, so you have to like probability, wait, time, wait, time lag, the teams that suck versus don't. Um, and, and sort of, you know, our data center model does that. We kind of track every data center, uh, and try and do this for every single one based on you know equipment that they using and all these things One of the things you mentioned about Google is you know in a gigawatt data center they actually put like 1 gigawatts of hardware And because they have such understanding all the way from workload to you know they able to slosh the power around And so instead of you know, constantly, you know, a gigawatt of compute, which typically runs at like 60 or 70% utilization in terms of power consumption, not utilization of the hardware, someone's always renting it. They're now running it at like, you know, you know, that 60 to 70% means it's at a gigawatt and you're using the full gigawatt. You see people doing deals with, including Google, with utilities where they're like, oh, well, I know this grid can sustainably take a gigawatt, but except for three days of the year, you can actually do two gigawatts. So give me two gigawatts and then just tell me to turn off. And so they'll do that. And so these sorts of tricks, and then you need to have supreme management of workload, backup power, all these things, generators on site to figure out how to actually keep it two gigawatts sustainably. When people do this, they're able to charge more. Whether it be I'm actually selling two gigawatts despite only having one gigawatt because those three days I'm able to deal with via battery, gas, etc. Or I figured out how to build power on site. Now I have a gigawatt where no one else does. And so I'm able to do it quickly. It's not necessarily transacting for a higher price. It's that I'm selling more gigawatts. And sometimes there are levers where you selling more gigawatts where each gigawatt is selling at a different price I think it more on the data center and energy layer It more about just having it versus not and then that being delayed or not It more binary But on the compute side, I do think there's a lot more interesting work there, right? A gigawatt given to Anthropic is objectively worth more revenue than a gigawatt given to OpenAI. And it seems that both of them could sell every gigawatt that they have right now, given rate limit problems and token max limit and all these sorts of things that open the ananthropic, especially since Codex 5.5 came out, it's much better. And then likewise, if you gave a gigawatt to SpaceX, they'd turn it on. My guess, my suspicion is that they probably make better use of the hardware than most people. I think people underestimate how much networking experience they have from Starlink in particular, and also how much power management experience they have from Tesla. Yeah, people like Brett Mayo are incredible. Pretty good. Yeah. And so for me, that's actually probably the thing that might – I don't actually know the answer, but I think that might be missing from the analysis a lot of people have. I think it also the fact that when CoreWeave builds a gigawatt even though their GPU compute is objectively better than Amazon or Google or Microsoft in terms of performance We tested the performance and reliability The problem is Google sells it six months before they have it up and they need to turn around and take that paper that they signed to get debt with that credit backing and then turn around so they can actually pay for the PO that they've already issued, you know, for the order that they've already issued. Whereas SpaceX was like, no, no, no, this is running now. Buy it, right? And it's a big discrepancy when you have a balance sheet to do that versus not. And that also helps your revenue per megawatt be much higher. Why does the NeoCloud opportunity even exist? Because if you had asked me five years ago, I would have said the hyperscalers are going to own this. And you mentioned just now CoreWeed has better performance than the hyperscalers. Why does this opportunity exist maybe at the macro level and then in the execution level? Yeah. So in 2023, I wrote a report that had Amazon really hate me. It was called Amazon Cloud Crisis. So I talked about how Amazon was the best because they had their Nitro NICs, which offered like tenant isolation. All the hypervisor ran on the NIC, and then you could sell all the cores. And they had custom SSDs that they made and they'd buy the raw NAND and they'd have lower cost because they'd buy the raw NAND and build their own SSDs. And they had their custom Graviton CPUs and that drove down cost per core. And so they had all these things [65:00] That enabled them to sell more cores, have better security, good networking. But this was all for the traditional CPU, better storage, for the traditional cloud world. But in the AI cloud, a lot of this stuff hurt performance, right? These Nitro NICs were bad for performance, still are worse performance, although they've caught up a lot because they've had a couple iterations to improve them. But they're still worse for performance. A lot of the security stuff doesn't matter because it's not like I'm time-splicing users or splicing a socket into many users, right? It's like no one rents a single GPU in an 8GPU server. No one rents a single GPU in a 72GPU rack. They rent the whole rack. And in fact, they rent many of the racks. And then there's no like, oh, I rent for six hours and I give it back. It's everyone has these long-term contracts. So the mechanics of the GPU rental market meant that a lot of the expertise of the hyperscalers fell away. And a lot of the expertise that they did have were actually some of them were detrimental, right? Network performance. For Google and Amazon, they had custom networks that were better for traditional CPU and for the stuff that they were doing, but actually worked for AI. And then in other cases it like well Microsoft would save money by building their own data centers but their data center teams were not actually that great And so when it came time to run when it was predictable building it was like fine When it came to like actually double your forecast for the year it like they fell on their face and they had to go get a bunch of NeoCloud capacity I think so performance, I think, you know, I think time to market's another one, right? You know, these massive organizations, no one's getting rich from building this data center faster, right? But you look at Crusoe, for example, Chase and all the other people at the team, I was going to name some people on the team, but I'd rather not. All these people are getting rich if they fucking deliver this compute faster. They're hyper-levered equity owners. They're also all coming from Bitcoin, and you're not supposed to say that. I mean, a lot of the data centers, like their main data center guy came from Microsoft. I don't know. I'm just teasing, but it's like you learn a lot when you're in a very high fluctuation market. How much do you think was Jensen playing 4D chess? Jensen absolutely hates a world where all the hyperscalers have all the power. There's a reason he's blowing money on random AI labs that I don't even know if it makes sense to, but he's blowing money and pumping them up and going to everyone around the world and saying you should invest in this company because he wants to create a multipolar world That why he loves Chinese labs because he wants to create a multipolar world A world where open philanthropic and Google models are the only models is one in which he screwed Yep Right A world in which the hyperscalers are the only ones building compute is one he screwed in. And so, of course, he needs to point the allocation gun at neoclouds, help backstop their clusters, do anything and everything. Because while today, a GPU sold to Crusoe and a GPU sold to to CoreWeave and a GPU sold to Google and Amazon are all the same price for him. Five years from now, Crusoe and CoreWeave existing means Google TPU will be weaker and means Amazon Tranium will be weaker. And more inference being done with non-closed source model labs is better for him. So I think the NeoCloud ecosystem is these people that are Wild West, these NeoLabs as well, a lot of them have investments from NVIDIA. It's the Wild West. Some will fail. Many will fail. but you know some will emerge as really great teams whether it be you know oddly crusoe who's a bunch of crypto guys who then started building data centers and doing flare gas stuff or you know core weave who initially was a bunch of hedge fund guys they were also and then they were crypto guys but then they they like built you know there were a lot of people who didn't bubble up like them started around the same time just failed right and so i think you know i gotta say both those teams are phenomenal yeah they a lot of credit and it like that your Yeah I mean my point is like he you know you throw it like you throw a bunch of like bait into the water and the best fish will figure out and survive right And sort of the same way with the NeoClouds and he hopes the NeoLabs as well. We'll see if any of the NeoLabs really bubble up. But like Thinking Machines has a few hundred million dollars of ARR, right? That's pretty impressive even though they've had – in the media, it's like, oh, they've lost all this talent. It's like, well, but Tinker is doing a few hundred million dollars of ARR. Like that's pretty impressive for out of the gate, a product that's less than six months old or whatever. And, you know, we hope the same happens to other Neo labs. And so, you know, he wants a multipolar world. Truly, congratulations on the success. Thank you. Thank you. Just the last thing I'll say is I've seen a little bit of this. I think the public, they can probably tell from listening to you how hard you work. But, like, it's clear you've just been working your ass off for more than a decade. And it, you know, led to the last few years of being in the right place, right time. but it's unbelievable what you've accomplished. And I know it's just the beginning. So thank you so much for doing this. Awesome. [70:00] Thank you.