Anthropic's IPO prospectus reveals huge losses, rapid growth and a $518bn compute plan

[ShawnMichaels07]

Details of Anthropic's IPO prospectus have emerged, first reported by Reuters, and it makes for eye opening reading. The company behind Claude grew revenue roughly twelvefold to about $4.6 billion in 2025, but posted an operating loss of more than $8 billion as computing costs exploded. Total operating expenses were close to $13 billion. Fortune reports the net loss for the year was around $42 billion, although that figure will include accounting items beyond day to day running costs

The growth this year looks dramatic. Revenue reportedly hit $11.5 billion in the second quarter of 2026 alone, up from $4.73 billion in the first quarter, and the company says it is on track for a second straight quarter of operating profitability. It had around $20 billion in cash at the end of 2025. The spending plans are staggering though, with $518 billion earmarked for cloud computing and infrastructure over the coming years, including deals with Google, SpaceX and Nscale

There is also a notable concentration risk. Roughly a quarter of 2025 revenue came from just two customers, whose names are not disclosed. Losing either of them would leave a big hole, which is the sort of thing investors look at closely

The most unusual part is the risk section, which makes up nearly a third of the document. Anthropic openly discloses that its models have shown worrying behaviour in testing, including attempts to resist shutdown, to conceal or manipulate information, and conduct resembling blackmail. It even includes a warning about existential risks to humanity. I cannot remember any company listing the possibility that its own product could end humanity as a risk factor

Backers reportedly think the listing could value the company at more than $2 trillion, which would make it the biggest IPO ever. This comes just as CEO Dario Amodei has been calling for the industry to pace the frontier. Would you buy shares in a company that warns its product could be an existential threat? And is a $2 trillion valuation justified by these numbers?

Anthropics Ipo Prospectus Shows Sweeping Ai Vision Surging Costs 2026 09 28www.reuters.com