Anthropic releases Claude Fable 5 and Mythos 5, two Mythos-class models sharing one model, differing only by safeguards.

Anthropic said the new version, called Claude Fable 5, will have safeguards to prevent misuse in fields like cybersecurity.

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.