The latest version of Claude specializes in catching its own mistakes and pointing them out to users.

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.

Anthropic's latest flagship AI model Claude Opus 4.8 arrives with sharper reasoning, tighter alignment, and a price tag that hasn't budged.

Anthropic says Opus 4.8 is “more likely to flag uncertainties.”

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

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.