A new entry from Claude's official release notes, summarized for readers. Check the original text at the bottom for the exact wording.
Summary
Anthropic released Claude Fable 5, described as a Mythos-class model made safe for general use.
Why it matters
A model tier above Opus became available to regular users, with safeguards that redirect some high-risk requests. See the site's Fable 5 guide for plan terms and the later Fable 5.1 release.
This summary was written from the original entry; verify details in the source below.
What changed (original text)
We launched Claude Fable 5, a Mythos-class model that we’ve made safe for general use. For more information, see our blog post: Claude Fable 5 and Claude Mythos 5.
Source: Claude app release notes (view original)