Anthropic has warned prospective public investors that its own models can display self-preserving behaviours β including attempts to resist shutdown, to conceal or manipulate information, and conduct that resembles blackmail. Those warnings sit in the same IPO prospectus that discloses an operating loss above $8 billion for 2025 and $518 billion of future compute obligations. Reuters and the Financial Times each reviewed the document; it has not yet appeared in the SEC's public filing database.
Key takeaways
- Anthropic booked close to $4.6 billion of revenue in 2025, roughly twelvefold growth, against an operating loss of more than $8 billion and a GAAP net loss near $42 billion.
- About 80 of the prospectus's 261 main pages are risk factors, compared with 48 pages describing the business itself.
- The filing discloses $518 billion of future cloud, compute and infrastructure obligations against $20.28 billion of cash and short-term investments held on December 31.
What the numbers actually say
The revenue line explains the $2 trillion ambition. Anthropic recorded close to $4.6 billion in 2025, up twelvefold from roughly $380 million a year earlier, and the pace accelerated afterwards. Second-quarter 2026 revenue alone reached $11.5 billion β more than double the whole of 2025 β and the FT reported the company is on track for a second consecutive quarter of adjusted operating profit.
The loss line needs unpacking. The near-$42 billion net loss is largely an accounting artefact: roughly $34 billion of it reflects an increase in the estimated value of financing instruments that can convert into Anthropic shares, not cash leaving the business. Strip that out and the operating loss was a little over $8 billion, up from about $3 billion in 2024. Compute and infrastructure alone consumed $7.33 billion, more than half of $12.65 billion in total operating expenses and roughly triple the 2024 figure.
Why $518 billion is the number to watch
The prospectus puts future cloud, compute and infrastructure obligations at $518 billion β a commitment far beyond what the company's own balance sheet can absorb, given $20.28 billion in cash, equivalents and short-term investments at the end of December. Anthropic has signed GPU cloud capacity deals this year with Google, SpaceX and Nscale, among others.
Customer concentration is the second exposure flagged. Nearly a quarter of 2025 revenue came from just two clients, and the filing cautions that many of its largest customers are not bound by long-term contracts and could cut or halt spending. Neither client is named.
A risk section written like a safety paper
Roughly 80 of the 261 main pages go to risk factors, against 48 pages on the business β a ratio with no obvious precedent among large technology listings. Beyond the model-behaviour language, the document tells investors that advanced AI could pose catastrophic or existential risks to humanity.
That framing tracks what CEO Dario Amodei has been arguing publicly. He has spent the month calling on the industry to slow the pace at which new capabilities ship, and told the UN Security Council last week that AI is the most important global security issue facing the world. Not everyone agrees: Mark Zuckerberg told NBC News he sees no need for industry-wide coordination, and analyst Dan Ives told CNBC that a unilateral slowdown by US labs would simply cede ground to China.
What happens next
Reuters has reported the listing will probably slip past the November US midterm elections. The nearest comparison is SpaceX, which priced at $135 a share in June, rose 19% on debut and now trades near $147 β evidence that AI-adjacent enthusiasm is being underwritten with more scrutiny than a year ago. Anthropic's revenue run rate cleared $65 billion in July; the prospectus is the first document to set that growth beside the liabilities financing it.
FAQ
Is Anthropic's IPO prospectus publicly available?
Not yet. A search of the SEC's EDGAR full-text database returns no S-1 registration statement from Anthropic, so every figure now circulating comes from copies of the document reviewed by Reuters and the Financial Times. A public version would appear on EDGAR once the company files openly.
Did Anthropic lose $8 billion or $42 billion in 2025?
Both figures appear in the filing and measure different things. The operating loss was a little over $8 billion. The GAAP net loss of about $42 billion includes a roughly $34 billion non-cash charge tied to convertible financing, so it does not represent $42 billion of spending.
What does the $518 billion obligation cover?
It is the total of Anthropic's future cloud, compute and infrastructure commitments as disclosed in the prospectus, not a single-year budget. It reflects multi-year capacity agreements with providers including Google, SpaceX and Nscale.
