Anthropic confidentially files for IPO, joining OpenAI and SpaceX in planning public market debuts

Anthropic filed confidentially to go public on Monday, following a funding round that valued the Claude chatbot maker at $852 billion, surpassing OpenAI.

The IPO filings by Anthropic, OpenAI, and SpaceX are expected to create what The New York Times called 'a tsunami of investment and employee wealth,' though the mega-IPOs will test investor appetite for big-spending AI labs.

One Anthropic investor characterized the startup's situation as 'teetering on the brink of either growing too fast, or too slowly,' citing unprecedented economics in the sector.