Part 08Who writes the checks
OpenAI and Anthropic were running at a combined $105 billion of annual revenue in July, $40 billion and $65 billion respectively.
AI Lenders Are Financing the End of ScarcityCompany
Anthropic
Anthropic is named in 12 Parts of The Buildout, most recently Part 17: The Guarantee Has No Date.
Privately held; no market quote.
By the numbers
What the stories reported.
Each figure carries its date and source in the story it comes from.
- $1.25BMonthly Anthropic contractThrough May 2029, as documented by Kevin Gee · Part 02
- 142%Anthropic quarterly growthQuarter on quarter, Q2 2026 · Part 05
- $559MAnthropic adjusted incomeMichael Spencer; preliminary June quarter 2026 · Part 05
- $4 vs $10Anthropic's Opus 5.5 list price per million input tokens, against OpenAI's GPT-6 AstraCharlie Hills, Sep 27, 2026; the frontier undercut by 60% · Part 12
- A quarterShare of Anthropic's 2025 revenue that came from two customersMia Silverio of Prof G Markets, Oct 5, 2026; 47% of sales ran through Amazon and Google · Part 12
Where the argument touches it
On each side.
Paraphrased and attributed, with the date and a link where one exists. DeepStack keeps no score of who was right; the dated tests do that work in the open.
Part 17 · The lease is already debtSep 9, 2026
Hyperscalers including Google, Microsoft, Amazon, and Meta have spent over a trillion dollars in capital expenditure on GPUs, largely to capture revenue from OpenAI and Anthropic, which they themselves continue to fund, creating a closed loop where…
Part 17 · The cash flows cover itSep 17, 2026also Part 14
Anthropic itself is not borrowing the money; it is the hyperscalers (he names Meta, Google, Amazon, Microsoft, Oracle) who are borrowing to use Anthropic's products, so if Anthropic were to go bust, that would be an equity problem rather than a…
Part 17 · The weak link pays firstJul 9, 2026
AI labs like OpenAI and Anthropic face a financing constraint because they are not investment grade and much of data center build-out requires capital-intensive, upfront CapEx they cannot afford, which slows their ambition to be more vertically…
Part 16 · The loan is a bridgeJul 20, 2026also Part 12
Reported revenue acceleration at the two leading model companies — an annualised run-rate said to go from USD 1 billion at end-2024 to USD 9 billion at end-2025 to almost USD 50 billion in May this year at Anthropic, with a similar trajectory at…
Part 16 · The loan is a bridgeSep 8, 2026
The latest US AI lab models, GPT-6 Astra and Claude Fable 5.1, are priced at $10/$50 per million tokens, a similar band to GPT-4 ($30/$60) and Opus 3 ($15/$75) at their respective releases, leading Market Sentiment to conclude there is a separate…
Part 16 · The seller funds its demandJul 15, 2026also Part 12
Circular financing distorts the picture: hyperscalers and NVIDIA have committed roughly $180 billion to OpenAI and Anthropic, which pledge about $1.1 trillion of compute spending back to them against far smaller revenues, and $53 billion of…
Part 16 · The seller funds its demandSep 28, 2026
Steve raises the concern that Nvidia had an insane quarter yet seventy percent of its receivables come from five accounts, and that much of the food chain depends on the health of Anthropic and OpenAI.
Part 16 · Two labs carry the chainJul 7, 2026
Back-end AI can only look profitable while unusually rich and irrational customers burn billions with no return; Ed Elson estimates OpenAI and Anthropic alone account for 60-80% of AI revenues at Amazon, Google and Microsoft and, per The…
Part 16 · Two labs carry the chainOct 8, 2026
With Anthropic and OpenAI delaying their IPO dates, there are increasing signs that the public equity market is running out of marginal buyers.
Part 16 · Voices that cross sidesAug 14, 2026
Anthropic and OpenAI together account for roughly 70% of hyperscaler AI revenue and 25-35% of total cloud revenue, with Microsoft, Amazon, and Google's growth substantially dependent on these two companies.
Part 16 · Voices that cross sidesOct 1, 2026
An Anthropic IPO might be a safer bet than semiconductor or neo-cloud stocks in this climate, because the U.S. needs its frontier model maker and enterprise AI leader, so if Anthropic were ever in serious financial trouble, Nvidia, Amazon and…
Part 16 · Voices that cross sidesOct 1, 2026also Part 12
Anthropic is far ahead of OpenAI pre-IPO, both in model quality and ARR, and that lead should only accelerate with IPO proceeds heading into its November IPO.
Part 12 · The frontier is still paidOct 2, 2026
Tae Kim anticipates a close back-and-forth for model leadership between OpenAI and Anthropic over the next six months, expects another Anthropic model release before or around its IPO, and predicts both American frontier labs should do great once…
Part 12 · The frontier is still paidOct 2, 2026
Tae Kim argues the earlier media consensus that OpenAI had fallen too far behind Anthropic was wrong, and that OpenAI pivoted resources to agentic coding after Anthropic's December lead, largely caught up by April, and arguably surpassed Anthropic…
Part 12 · The frontier is still paidSep 13, 2026
Oguz Erkan says the concentration of the LLM market is still unknown: OpenAI and Anthropic take the lion's share of token dollars but their share of token volume has been declining, so the LLM market could be far more fragmented in 3-5 years, which…
Part 12 · The frontier is still paidSep 13, 2026
Wyndo recommends trying open-weight models if a user keeps hitting usage limits on Claude or ChatGPT, or wants to lower the cost of certain tasks, since some work may run well on an open-weight model while saving the subscription for tasks where…
Part 12 · Open weights set the priceSep 28, 2026
Steve says the AI story probably continues as long as token growth keeps rising, and identifies a price war between Anthropic, OpenAI and the Chinese models as the main risk that could change it.
Part 12 · The filing sets the priceSep 24, 2026
Alphabet's reported 112% Google Cloud backlog growth is suspect because a new category of unknown size — TPU system sales contracts — was added to cloud backlog in the last six months, and one of the largest TPU customers is Anthropic, in which…
Part 12 · The filing sets the priceSep 21, 2026also Part 10
OpenAI's combined annualized revenue with Anthropic reached $105 billion (OpenAI $40 billion, Anthropic $65 billion) in July 2026, which is nowhere near the figure needed to support the modeled 2027 buildout, and this understates the true gap since…
Part 12 · The filing sets the priceSep 21, 2026
Anthropic looks likely to file for an IPO soon, and it will want to do that while token usage numbers are still near their peak, before the picture gets less flattering.
Part 12 · The filing sets the priceSep 21, 2026
The AI trade's foundations are shaky because roughly seventy percent of the hyperscalers' AI revenue traces back to just two customers, OpenAI and Anthropic, both of which are burning enormous amounts of cash, so if either stumbles the entire…
Part 12 · Voices that cross sidesSep 29, 2026
OpenAI is in deep trouble in 2027 due to pressure in consumer AI from Meta and SpaceXAI, pressure from Chinese open-source models on cost and token marketshare, and being late to IPO while being overtaken in ARR and growth by Anthropic in…
Part 12 · Voices that cross sidesSep 11, 2026
Michael Spencer argues that in 2026 Chinese open-weight models are taking serious market share from incumbents like OpenAI and Anthropic, because the Chinese labs are only a few months behind the frontier and shortening release gaps mean even…
Part 11 · A backlog is a promiseSep 9, 2026
There is a chain where NVIDIA sells chips to hyperscalers, hyperscalers' capital spending depends on the future health of OpenAI and Anthropic, and both are currently losing substantial sums, with OpenAI's revenue growth having slowed relative to…
Part 10 · Not the customers, yetOct 5, 2026
Anthropic's expected ~$2 trillion IPO valuation is not justified by its numbers, given that it would need $1.2 trillion in annual revenue within 10 years (per Aswath Damodaran) to justify that valuation while the entire current AI products and…
Part 10 · Not the customers, yetOct 5, 2026
Anthropic's customer concentration is a risk for its $2 trillion valuation: nearly a quarter of its 2025 revenue came from two customers and 47% of sales ran through Amazon and Google, which is an acceptable problem for a small company but not for…
Part 09 · Still a demoSep 29, 2026
Michael Spencer is not confident about Muse's odds of success, citing that only Anthropic has shown how to scale ARR so far in this Generative AI cycle, that the ratio of app downloads to actual users seems fairly low and suspicious, and that Meta…
Habit Was the Moat. Agents Are Draining It. Who is on each side Source
Part 09 · The owner of the agentSep 21, 2026
Muse is gaining traction: as of that Friday it ranked No. 1 in Apple's App Store ahead of ChatGPT at No. 2, Gemini at No. 8, and Claude at No. 13, and since its September 8 unveiling Meta has added nearly $170 billion in market cap and is up 9%…
Habit Was the Moat. Agents Are Draining It. Who is on each side Source
Part 05 · OpenAI: commoditizedAug 20, 2026
Michael Spencer predicts Anthropic will achieve AI supremacy status in 2027 and by 2030 will have no comparable peer competitor, not Google, OpenAI, DeepSeek, or Alibaba.
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 05 · OpenAI: commoditizedJul 30, 2026
In June 2026, the Commerce Department suspended access to Anthropic's Fable 5 and Mythos 5 models for all non-US persons, invoking export-control authority, with practical effect of a global suspension that lasted under three weeks before…
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 05 · Anthropic: not yetAug 20, 2026
Anthropic's ARR grew from approximately $700 million in August 2024 to its current level, a roughly 93x increase in about two years.
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 05 · Voices that cross sidesAug 20, 2026
As Devin and similar tools scale, they drive increased token usage of Anthropic's models, creating a compounding benefit to Anthropic.
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 05 · Voices that cross sidesAug 11, 2026
Because OpenAI and Anthropic pay their bills with venture funding of which Big Tech supplies roughly 40%, revenue Big Tech books from them is partly recycled from itself and not real growth.
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 05 · Voices that cross sidesAug 11, 2026
If Big Tech depends heavily on OpenAI and Anthropic for revenue growth, that growth is unsustainable because both customers are massively unprofitable and may not survive.
OpenAI and Anthropic Are Not the Same Business Who is on each side Source
Part 02 · The number is realAug 7, 2026
Selling frontier-model inference is extraordinarily profitable: on a GB300 cluster, OpenAI and Anthropic can generate over 100 billion dollars per gigawatt-year of revenue against roughly 12 billion of rental cost.
SpaceX Is Funding an AI Bet Before the Proof Who is on each side Source
In The Buildout
Where Anthropic appears.
One line per story, from the story itself.
Part 08Cash, or a loop
Ed Zitron said Alphabet, Amazon, Meta and Microsoft have together spent over $1 trillion on Nvidia GPUs, mostly to win the business of OpenAI and Anthropic, two companies they also help fund and that both lose heavily.
AI Lenders Are Financing the End of ScarcityPart 07AI meets the rate
Apollo, relayed by DeepValue Capital, assumes hyperscaler operating cash flow triples from $600 billion to $2 trillion, with OpenAI and Anthropic accounting for more than half of a $2.3 trillion backlog.
The Fed Hiked. The Long End Still Climbed.Part 05Lede
Anthropic grew 142 percent.
OpenAI and Anthropic Are Not the Same BusinessPart 05Lede
The slow laboratory went from $5.7bn to $6.7bn, according to Michael Spencer; Anthropic reached $11.6bn.
OpenAI and Anthropic Are Not the Same BusinessPart 05Lede
Anthropic is still collecting a premium where enterprise coding turns model use into recurring work.
OpenAI and Anthropic Are Not the Same BusinessPart 04The tape picks winners
We would be wrong if Alphabet’s higher 2027 budget lifted the stock, operating cash flow caught up with capital spending, and the next financing for OpenAI and Anthropic showed durable revenue without widening credit terms.
AI Spending Has Met Its First Real BillPart 03Demand has teeth
His checklist is substantial: token demand is up roughly 17,000-fold in four years; DeepSeek raised token prices despite a strategy built on undercutting; combined OpenAI and Anthropic revenue run rates crossed $110 billion in July; and Morgan Stanley put hyperscaler returns on AI capital expenditure at 25 to 46 percent.
The Machines Will Work. The Debt Might Not.Part 02The customer test
And the demand exhibit is a signed contract rather than an inference: Kevin Gee documents Anthropic’s agreement to pay SpaceX $1.25 billion a month for compute through May 2029, roughly $45 billion in total.
SpaceX Is Funding an AI Bet Before the ProofPart 02The customer test
Anthropic is itself raising $30 billion at a $900 billion valuation.
SpaceX Is Funding an AI Bet Before the ProofPart 02What 2027 must prove
Anthropic’s monthly commitment is a signed customer contract, and Starlink generated $4.4 billion of operating income last year.
SpaceX Is Funding an AI Bet Before the ProofPart 01Lede
In late May, Apollo was raising $38 billion of debt to put Google’s TPUs, not Nvidia’s GPUs, behind Anthropic.
Nvidia’s Demand Is Real. Its Financing Is Fragile.
On the Docket
The tests that name Anthropic.
Each is on the Docket and resolves on the Results page.
- When filed
Anthropic's first public registration statement: its first audited revenue, and how much of it runs through investors that also sell it compute.
Amazon reports: it does not break Anthropic out, so the test is what AWS discloses about its largest customers, against Silverio's October 5 count of 47% of Anthropic's sales through Amazon and Google.
Anthropic's listing, Part 10's test as the Docket states it: a registration statement with audited revenue, net loss and customer concentration public on EDGAR, or shares trading; a confidential draft without an EDGAR filing is inconclusive.
Anthropic filing or listing reveals audited revenue, losses and concentration, testing the $400B revenue milestone.
- Next lab financing
OpenAI and Anthropic revenue and funding terms emerge; deceleration, not decline, is the trigger for a reflexive break.
Anthropic’s $1.25B monthly commitment expires; payment durability will test contracted AI demand.
Part 02: SpaceX Is Funding an AI Bet Before the Proof Pending
Follow
Follow Anthropic: one email when a test on Anthropic resolves or a new Part names it.
Across the DeepStack reading
How often it comes up.
139 sources, 2292 claims and 851 texts mention Anthropic, as of Oct 22, 2026. A count of attention, not a judgment.
Analysis and opinion, not investment advice. Figures are as of the dates cited in each story.