AI TRENDS | Anthropic Plans to Release Public Version of Mythos Under the Name Fable 5

Anthropic plans to release a public version of Mythos tomorrow, with a rebrand and minor adjustments under the name “Fable 5.” According to Jin10, technology reporter Alex Heath said the public release will include strict safety safeguards and will be less permissive for web operations than the version accessible to Project Glasswing partners. Heath added that the new version is expected to deliver significantly improved performance on long-horizon, multi-step tasks.