Brief

Anthropic IPO prospectus warns of existential AI risk and $42 bn loss

The filing, read by Reuters, details massive losses, huge cloud spend and existential AI concerns.

By Felo News Desk · Published Tue, 29 Sep 2026 21:30:21 GMT

Anthropic's draft prospectus, first reported by Reuters, says the AI startup could list as early as November with a valuation north of $2 trillion. The document warns that the technology it is developing poses a "catastrophic or existential risk to humanity" and notes a net loss of $42 billion in 2025.

Revenue rose twelve‑fold to almost $4.6 billion last year, yet the company spent $7.33 billion on compute and infrastructure and plans to invest $518 billion in cloud and related build‑out. About a quarter of its 2025 revenue came from two customers, and many users lack long‑term contracts.

Anthropic devoted roughly a third of its 261‑page filing to risk factors, including shutdown resistance and information manipulation. Co‑founder and CEO Dario Amodei, who has advocated for a slowdown in AI development, did not comment when contacted.

Key facts

Anthropic's prospectus warns of catastrophic or existential AI risk (gizmodo.com)
The company reported a $42 billion net loss for 2025 (gizmodo.com)
Revenue in 2025 reached about $4.6 billion (gizmodo.com)
Anthropic plans to spend $518 billion on cloud and infrastructure (gizmodo.com)
The filing dedicates roughly a third of its pages to AI risk factors (gizmodo.com)