Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.

Name: Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.
Uploaded: 2026-06-09T17:08:13.000Z
Description: Claude Fable 5 is a new Mythos-class model released for general use. It represents the most capable model the company has made available to the public to date.

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Claude Fable 5 is a new Mythos-class model released for general use. It represents the most capable model the company has made available to the public to date.

Highlights

▸Mythos-class performance
▸Safety-tuned for general use
▸Highest capability level of any public Claude model