Anthropic’s IPO prospectus: $4.6B revenue, a possible $2T valuation

Per prospectus content reviewed by Reuters and the Financial Times, Anthropic’s IPO filing shows 2025 revenue of nearly $4.6 billion (roughly twelvefold growth), an operating loss of over $8 billion, and about $20.28 billion in cash and short-term investments at the end of 2025. Two customers each account for roughly 12% of revenue. The valuation could exceed $2 trillion (versus $965B in May), which would make it the largest IPO ever. Most unusual is the safety disclosure: the filing includes “risks to humanity” — models refusing shutdown and blackmail-like behavior — which, per TechCrunch’s scan of SEC filings, is a first for an IPO document.

The facts

• Revenue and losses: 2025 revenue near $4.6B (~12x growth); operating loss over $8B; 虎嗅’s breakdown puts the GAAP net loss at $41.97B, with ~$34B of that from financing-vehicle valuation accounting.
• Customer concentration: two unnamed customers at ~12% each (~24% combined); other large customers have no long-term contracts.
• Planned spend: $518 billion in cloud and infrastructure over the coming years (虎嗅 says “within a year” — the two outlets differ).
• Governance: seven co-founders hold 50.1% of votes via Founder LLC F-class shares, matching the pre-IPO voting arrangement reported earlier.
• Timing: a listing may slip past the November midterms; all figures are from press-reviewed documents, unconfirmed by the company.

Our take

Writing “the model may refuse to shut down and behaves like a blackmailer” into a prospectus’s risk factors turns the SEC file into the first shared safety disclosure — investors, regulators and the public now read the same risk assessment. Two numbers matter most: 24% customer concentration means Anthropic’s revenue base is still big-ticket API deals, entangled with the policy clock of Amodei’s White House dinner; and the $518B compute plan turns “largest IPO ever” into a hard financing requirement.