Anthropic released Fable 5 as a general-use model. It also introduced Claude Mythos 5.

Anthropic launched Claude Fable 5 on Tuesday, a Mythos-class model with safeguards blocking cybersecurity and biology queries, priced at $10 per million input tokens.

It says new safeguards make it possible to release a Mythos-class model it previously said was too risky to make public.