claude-fable-5. If it responds, Fable 5 is back; while access is suspended the API returns an error and we keep showing No.Not affiliated with or endorsed by Anthropic.
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Stay tuned for updates on is fable 5 back as the story develops. Related: Optimized inference you actually own.
Frequently Asked Questions
No. Claude Fable 5 (claude-fable-5) has been offline since June 12, 2026, when a U.S. export-control directive suspended access.
A U.S. government export-control directive suspended it on June 12, 2026, citing national-security concerns after officials claimed to have found a way to bypass the model's safeguards. Anthropic disagreed that the issue was significant but complied while working to restore access.
There is no announced return date. Anthropic says it is working to restore access after the suspension of Fable 5 and its sibling model Fable Mythos.
Every minute it queries Anthropic's API with the model claude-fable-5. If the model responds, the page flips to Yes; while access is suspended the API returns an error and the page keeps showing No.



