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Claude Fable 5 is announced as a new 'Mythos-class' model and is being promoted…

Brief

Claude Fable 5 is presented as a new Mythos-class model and is claimed to be safe for general use. The announcement asserts its capabilities surpass any Claude model previously made generally available, and the post includes a promotional video (shared via a link) to showcase the release.

Why it matters

Claude Fable 5 is announced as a new 'Mythos-class' model and is being promoted as safe for general use.

Key details

  • The poster quotes Claude's claim that Fable 5's capabilities exceed those of any previously generally available Claude model and includes a promotional video link.
Source evidence

okay guys this is it

Claude (@claudeai)

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

Its capabilities exceed those of any model we’ve ever made generally available.

Video

— https://nitter.net/claudeai/status/2064394146916229443#m