Anthropic Showed Its Books. Here's Where Every $100 Goes
The company behind Claude filed to go public on 26 October 2026. Its S-1 shows $16.29 billion of revenue in six months, and about $104 spent for every $100 earned. Most of it went on compute.
The company behind Claude has shown its books for the first time. Anthropic filed its S-1 with the SEC on 26 October 2026 and has applied to list on the Nasdaq Global Select Market under the symbol "ANT". In the first six months of 2026 it booked $16.29 billion of revenue. A year earlier, the same six months brought in $1.16 billion.
Where each $100 went
These are our sums from the summary table in the S-1, for the six months to 30 June 2026 ($16,286 million of revenue).
- Compute and infrastructure: $8,945 million, about $55 of every $100.
- Personnel: $3,152 million, about $19.
- Sales, marketing and partnerships: $3,168 million, about $19.
- Other operating and administrative: $1,714 million, about $11.
- Together: about $104 for every $100 earned, an operating loss of $693 million. A year earlier the operating loss was $2,135 million.
Two kinds of compute
CNBC reported on 30 October 2026 that Anthropic's cost of revenue was $2.38 billion in the first half, which implies a gross margin of about 85%. That is the compute that answers customers, about $15 of each $100. The rest of the compute line, about $40, went into research and training new models. Both numbers are true; they measure different things.
a compute-constrained environment where customer demand exceeds available compute
— Anthropic, Form S-1 (26 October 2026)
The $80.7 billion loss
The net loss for the six months was $80,748 million. Of that, $72,388 million is the change in fair value of convertible notes, derivative liabilities and SAFEs. As a company's value rises, the instruments that convert into its shares are worth more, and that shows up as a loss on paper. It is not cash spent.
What it means if you build on AI
- Every answer an AI feature gives runs on compute, wherever your users are. A flat price with unlimited AI use loses money on your heaviest users.
- Price your plan for usage: a number of AI answers per plan, or a charge for heavy use. Pantry, the app in the reel, is made up, and so are its prices.
- The exception: small features, cached answers and on-device models can cost almost nothing per question.
Information, not investment advice.
This is the long version of What Just Happened #04, a reel for @buildjayy on Instagram. If you're pricing an AI app and want the numbers to work, send me the word BUILD there, or start with the brief form on the front page.
Sources: Anthropic, PBC, Form S-1 filed with the SEC (26 October 2026); CNBC, report on the filing (30 October 2026). The scenes of Maya and the data centre in the reel are AI video (Gemini).
- 4 Nov 2026
- Published, with the reel.
Product builder from Surat. Ships his own apps, runs live broadcasts, and takes on a few founders a year for product, brand and growth. hey@jaybutani.com