Anthropic’s IPO Filing Shows Explosive Growth, Risks and Staggering Costs

Anthropic filed paperwork on Monday for an IPO that could surpass the $86bn raised by SpaceX in June. The offering could give the San Francisco startup substantial resources, though its size, valuation and share price remain uncertain; it could also make cofounders Dario and Daniela Amodei billions of dollars wealthier. The prospectus points to rapid growth while flagging AI-related risks and concerns about lofty valuations and rising debt. Anthropic reported about $16.3bn in revenue and an $80.7bn net loss in the first half of 2026, largely because of an increase in the fair value of bonds convertible into shares.