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Anthropic and OpenAI will absorb half of new compute by 2027

SemiAnalysis founder Dylan Patel tells Dwarkesh Patel how lab economics reshape compute markets, why rising interest rates and regulation could cap the buildout, and how far behind China is.

Dylan PatelDwarkesh PatelAnthropicOpenAISpaceXMetaAI InfrastructureFoundation ModelsSemiconductorsGeopolitics
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Anthropic and OpenAI will absorb half of new compute by 2027

Recorded 25 August 2026 · 77 min

Anthropic and OpenAI now earn up to $50 million of revenue per megawatt on compute that costs $10-15 million, and that spread is pulling the world's compute into two companies. By Dylan Patel's count they take half of all new compute by the end of 2027 and most of the usable flops by the end of 2028. The brake is not research speed. It is whether the rest of the economy tolerates the buildout.

Patel, founder of SemiAnalysis, joins Dwarkesh Patel for their regular yearly conversation. They work from wafers and fab capex up through lab margins, supplier pricing, China's compute position and a CapEx bill that could reach $7-10 trillion a year.

The tension is that simple economics says build faster, while credit markets, regulators and voters push back. Dwarkesh thinks Patel's revenue forecasts are too low. Patel thinks rising interest rates, data center bans and withheld models are the real ceiling.

  1. Margin flip funds training — ▶ 0:37

    CapEx is a little over $1 trillion this year and more than $2 trillion in 2028, and a third of new compute is for OpenAI and Anthropic. Base compute costs $10-15 million per megawatt. GPT-4 on Hopper ran at negative gross margin. Anthropic's revenue has now reached as high as $50 million per megawatt: spend $10 on inference, make $50, and put the profit into training. Anthropic turned profitable in Q2, and OpenAI could in Q3, so growth is increasingly funded by their own revenue.

  2. Two labs take half — ▶ 3:50

    OpenAI began the year at 2 gigawatts and Anthropic below 2. Both end above 5, a 3-4x jump. That is about 30% of compute added this year, 40-50% next year, and half of all incremental compute by the end of 2027. SpaceX will lease capacity to them, OpenAI is building its own chips, and Anthropic buys TPUs deployed with Fluidstack. New chips deliver 3-5x performance per watt, so by late 2028 the two labs control most of the world's usable flops.

  3. Fab capex math — ▶ 7:18

    One gigawatt of Vera Rubin needs 55,000 N3 wafers, 6,000 N5 wafers and 170,000 DRAM wafers. Tooling to produce a gigawatt every year costs $3-4 billion, or about $6 billion with cleanrooms and shell. A gigawatt generates roughly $100 billion of revenue a year. Over five years, $6 billion of fab CapEx yields over $1 trillion of end AI revenue. Even after halving it for middlemen, the gap between fab CapEx and end revenue is 100x. This is the "turn $1 into $100" problem.

  4. Supply responds slowly — ▶ 9:39

    Supply is a bullwhip: it takes a long time for the signal to reach the tail. Carl Zeiss now says it must make enough mirrors for 100 EUV tools a year by the end of the decade, up from what it believed earlier this year. Patel says 100 is still right for 2030 on the current path. Next year's CapEx exceeds $2 trillion, while wafer-fab equipment does about $200 billion. Nobody hands Zeiss $10 billion to expand, because the world is capital constrained. An EUV tool bought for $400 million could be resold for over $1 billion.

  5. Compute must reprice — ▶ 13:53

    Reaching 100 gigawatts across both labs by 2028 means taking 70-80% of incremental compute. Patel calls that very aggressive and is unsure how markets would behave. Anyone can profit at $10-15 million per megawatt: rent a GB300 rack, download Kimi weights and vLLM or SGLang, list on OpenRouter. That is already pushing prices up. To win 70% of world compute, the labs must pay $25, $30 or $50 million per megawatt. Bedrock-served Anthropic models also count as Anthropic compute in his accounting.

  6. Regulation as the brake — ▶ 16:15

    Revenue per megawatt only climbs if the best models ship. OpenAI is not releasing Astra and stopped training for two weeks. Anthropic is withholding what its safety assessment calls Model 2, believed to be the next Mythos. If the best models stay internal, revenue per megawatt stalls or even declines as other models become competitive, and the labs lose the ability to outbid others. The regulation labs advocate slows them more than it slows open-source Chinese models. Without safety constraints, they would earn $100 million per megawatt or more and pay $50 million.

  7. Value capture rotates — ▶ 20:16

    Most value still goes to users. Jane Street and Meta, rumored at one point to be up to 10% of Anthropic's business, earn more from tokens than Anthropic does. A year ago hardware took all the margin while model layers sold tokens at a loss. In 2023 memory makers earned nothing on HBM. Now memory captures more than TSMC. SpaceX showed that Anthropic and Google would pay $25-40 million per megawatt. Meta and SpaceX build without customers using their balance sheets, then choose between internal use and selling at "crazy margins".

  8. End-2027 pricing dispute — ▶ 25:40

    Patel puts Anthropic or OpenAI revenue per megawatt at $50 million-plus by the end of 2027, perhaps $70-80 million blended. Dwarkesh calls that low given the jump from GPT-4o to Mythos in 18 months. Patel replies that the best model was trained in February and is not even used internally to optimize inference. Only a slowdown caps it near $100 million per megawatt. Price rises cascade: Nvidia, SK Hynix, Micron and Samsung raise, memory and substrates quickly and TSMC slowly. New York's ban, Texas's moratoriums and Ohio's property-tax rule cut supply.

  9. Inference share shrinks — ▶ 30:31

    A non-consensus call: labs will allocate less compute to inference over time, with most going to forward passes for training. At $30-40 million per megawatt a lab puts 40% into inference. At $60-70 million it will not keep 40% to fund dividends and buybacks. Executives and boards will choose to build AGI. The evidence is already visible. Anthropic adds compute every month, yet no longer adds $25 billion of ARR monthly, so marginal megawatts are going to R&D. Running the best model internally is worth more than selling it.

  10. China's compute gap — ▶ 34:37

    In 2022 the US added 45-50% of world compute and China 30-35%. Today 70% of deployed watts are American and China is under 10%. Patel expects China at 30 gigawatts or less in 2028, with 5-10 gigawatts of domestic chips that year, all worse than Nvidia's or Google's. A 50 gigawatt year in 2029 is plausible but worth about 20 gigawatts of American chips. Export controls look like a notable success. The caveat is that China's semiconductor subsidies exceed the rest of the world's combined, so a slower takeoff lets it catch up.

  11. Training can't absorb everything — ▶ 40:50

    Lab budgets split about 60% training and 40% inference, with training being 50% research and 10% development. Mythos pre-training used under 200 megawatts for about two months, and RL used less at a single site, while the lab held multiple gigawatts. Most compute goes to research experiments, because multi-site training and RL are hard to coordinate and more rollouts do not guarantee better models. Leading Chinese labs run 100-200 megawatts, and for now the gap barely matters. Patel expects automated researchers and continual learning to blur research and training.

  12. A $10 trillion bill — ▶ 42:51

    At 100 gigawatts a year, current prices mean $5 trillion of CapEx annually. Power plants and buildings are paid years ahead, so the real figure is $7-10 trillion, near a tenth of the world economy by 2030 and a quarter to a third of the US economy. His model has $11 trillion of CapEx from 2024 to 2029, with $6 trillion from cash and $5 trillion from credit. Hyperscalers already spend all their cash and raise debt. The marginal funders become Nvidia, infrastructure investors and households that skip homes and government bonds for hyperscaler debt.

  13. Rates and crowding out — ▶ 48:42

    $5 trillion of debt lifts rates. Patel guesses Meta, which recently raised at 5-6%, would happily pay 8%, a 250 basis point rise that reprices everyone. Banks' debt reprices faster than their assets, and long-duration stocks like Johnson & Johnson fall. If rates rise 5 points while the US borrows $2 trillion a year, interest rises from 20% to over 60% of tax revenue. He thinks the US survives by taxing data centers. Pakistan and Nigeria default, in a second Volcker shock. He flags the rate number as vibed.

  14. The world as limiter — ▶ 1:02:45

    The limiter on AGI is "how much does the rest of the world let that happen", not research speed. Rates, data center bans and fab stoppages all bend the curve. Patel hopes for slow takeoff but fears a 2030 where the government delays release by six months while labs self-improve internally and everyone else sits years behind. Dwarkesh argues a one-year slowdown costs 3-6 years of progress during RSI. Patel adds that governments will also restrict internal use, as when Anthropic briefly stopped giving Mythos to foreign employees.

  15. Centralization has no exit — ▶ 1:07:54

    Frontier compute grows 4-5x a year while compute per capability falls 3x, so effective AI population at the frontier grows about 10x a year, even without RSI. OpenAI could go from 10 million AI laborers to 100 million to a billion, exceeding the human population within one company by decade's end. Economies of scale in training, markups for the leader and learning from deployment all point one way. Patel's saving grace: users like Jane Street capture $300-500 million per megawatt. Dwarkesh counters that labs will rationally keep tokens inside.

The open question. Patel forecasts revenue per megawatt rising to $50-80 million by the end of 2027. He also argues that labs will shrink the share of compute sold as inference, keep their best models internal, and face regulators who withhold releases. Revenue per megawatt is earned on the externally sold slice, so those claims pull against each other. He never says how much of the forecast survives if the labs do what he expects them to do. Watch whether Anthropic's monthly ARR adds, already flat from their peak, resume once the next model ships.

Watch the full video at https://www.youtube.com/watch?v=aV26V1UvkJw.

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