Anthropic’s Claude Fable 5 is a version of Mythos the public can access today
Anthropic released Claude Fable 5, its first publicly accessible Mythos-class model with added guardrails for high-risk domains.
Excerpt
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.
Read at source: https://techcrunch.com/2026/06/09/anthropics-claude-fable-5-is-a-version-of-mythos-the-public-can-access-today/