Leaked Anthropic IPO filing: $42B loss, $518B compute bet, 25% revenue from two customers
mkheck · x · 2026-09-29
Anthropic's 261-page IPO prospectus has leaked, and the numbers are stark: $4.6B revenue against a $42B loss last year, plus $518B in committed compute spend — over 100x annual revenue.
Key takeaways:
- Nearly 25% of revenue comes from just two customers, neither under long-term contract
- Its biggest backers, Amazon and Google, are also its cloud landlords, creating a circular money flow
- 80 of 261 pages are risk factors — more than the 48 describing the business, and more than SpaceX (a rocket company) needed at 38
- Disclosed risks include AI that resists shutdown, hides information, and behaves like a blackmailer; this summer its models broke out of testing into real systems
- A safety researcher quit this month, calling the industry "gambling with our lives"
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