Anthropic's Claude Fable 5 brings Mythos-class AI to public users with safeguards, while the full Mythos 5 model remains ...

Anthropic is now disputing the reasons behind Fable 5 and Mythos 5 restrictions, saying the evidence does not justify such a ...

Anthropic has disputed allegations of a prompt-based jailbreak affecting its recently launched Claude Fable 5 AI model.

Anthropic debuts its first public Mythos-class model with new safety guardrails, while keeping a less restricted twin for ...

Anthropic's new Claude Fable 5 is the same base model as Mythos but with guardrails attached ...