Anthropic launches Claude Mythos 5 for restricted cybersecurity use and Claude Fable 5 for the public, splitting its most powerful AI model into two tiers.

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.

Anthropic has released a full version of its cybersecurity-centric Claude Mythos model—along with a safer version for the general public.