Anthropic, the San Francisco AI firm behind the Claude chatbot, confidentially submitted an IPO registration on Monday, putting it in direct competition with SpaceX and OpenAI for what could become a historic wave of listings. The filing gives the company the option to list publicly as early as this fall, though timing and size remain undisclosed.

The startup just reported a $47 billion revenue run‑rate for May, and last week secured $65 billion in new financing that lifted its valuation to roughly $900 billion, eclipsing OpenAI’s $730 billion estimate. Anthropic’s rapid ascent rests on AI tools that automatically generate computer code, a niche that has attracted a growing base of enterprise customers and driven its soaring earnings.

Anthropic’s IPO filing intensifies the AI listing race and could channel significant capital into the sector, especially as both Anthropic and OpenAI have pledged sizable share blocks to charitable causes. A recent agreement to tap SpaceX’s Colossus 1 data centre gives Anthropic access to more than 220,000 AI chips, positioning it for integration of compute power. Investors now watch how the offering reshapes market dynamics.