Just a day after the nearly $1 trillion AI giant revealed IPO plans, Anthropic is letting more firms access its powerful Claude Mythos model.

The Anthropic IPO, and those of other AI-related firms like OpenAI, could be among the biggest in U.S. history.

Claude maker Anthropic said Monday that it confidentially filed to launch an IPO in the U.S. following another huge funding round.

The company said Monday it has filed confidentially for an IPO.