Mythos is the AI lab's large language model with advanced cybersecurity capabilities that have raised concerns among executives and world leaders about its impact.

Anthropic is developing guardrails for Mythos.

Anthropic releases Claude Opus 4.8 with sharper judgement and fewer uncaught code flaws. Mythos-class models coming in weeks. Series H raises $65B at $965B valuation.

A Mythos-class model is expected in the coming weeks.