Anthropic split Fable 5 and Mythos 5 by cyber safeguards, giving vetted defenders stronger capabilities while limiting public misuse.

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.