[Is Fable 5 Back?](/)— here now
[Learn More](https://www.anthropic.com/news/fable-mythos-access)
Questions & answers #
- Is Fable 5 back?
- No. Claude Fable 5 (claude-fable-5) is not available right now. It has been offline since June 12, 2026, when a U.S. export-control directive suspended access. This page rechecks Anthropic's API every minute and updates the instant that changes.
- When is Fable 5 coming back?
- There is no announced return date for Claude Fable 5. Anthropic has said it is working to restore access after the June 12, 2026 U.S. export-control suspension of Fable 5 and Fable Mythos. The moment claude-fable-5 responds again, this page flips to Yes — and you can subscribe to be emailed when it does.
- Why was Fable 5 disabled?
- Claude Fable 5 was disabled by a U.S. government export-control directive on June 12, 2026. Officials cited national-security concerns after claiming to have found a way to bypass the model's safeguards. Anthropicdisagreed that the issue was significant — saying the same weakness is common across the industry — but complied while working to restore access.Read their full statement → - What is Fable 5?
- Claude Fable 5 (claude-fable-5) is Anthropic's most capable Claude model, used for advanced reasoning and long-horizon agentic work. Its sibling model, Fable Mythos, was suspended at the same time.
- How does this site know?
- Every minute we query Anthropic's API with the model
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.
As of Tuesday, June 16th, 1:18 PM, Claude Fable 5 is unavailable.
Know the moment it flips. #
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source & further reading
isfable5back.com — original article