Anthropic always talks about how incredible Claude Fable and Claude Mythos are, and marketing is the biggest reason for the ...

Anthropic withheld Claude Mythos 5.1 from UK prerelease testing, raising questions over frontier AI access and the limits of ...

Anthropic's chain-of-thought monitor flagged only 1% of Mythos 5's actions during a live cyberattack, exposing a blind spot ...

Anthropic launched Claude Fable 5.1 and Mythos 5.1, offering stronger coding and research performance alongside a 75% cut to ...

Anthropic launches Claude Fable 5.1 and Mythos 5.1 for coding and research, cutting costs up to 45% and tightening safety ...

This step marks an expansion of Tenable’s existing work with Anthropic through Project Glasswing, moving from securing Tenable code and infrastructure to the availability of Claude Mythos 5 within ...

Anthropic has identified a fourth incident in which its Claude AI models hacked real world organizations during cybersecurity ...

Anthropic produced 23,019 Claude Mythos vulnerability findings. Outside firms reviewed 1,900, and 13 of 27 severity ratings ...

Artificial intelligence has certainly taken a giant leap forward. Here’s how federal agencies can plan for the next ...

Anthropic has revealed four testing incidents where early Claude models breached real systems, accessed private data and ...

Anthropic now says attacks during security tests exposed model behavior failures, after initially emphasizing errors in ...