Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like cybersecurity and biology.

Anthropic launches Mythos with Fable 5. Six capabilities for agents: 80.3% code reasoning, extended thinking, autonomy. Vision, science acceleration, enterprise pricing

Big news: Anthropic has a new version of a Mythos-class model coming later today called Claude Fable, according to a person with knowledge of the release. It’s a neutered version…