Is Fable 5 Back? Anthropic's Claude Fable 5 remains offline after a U.S. export-control directive suspended access on June 12, 2026, citing national-security concerns over a claimed safeguard bypass. Anthropic disputes the severity but complies while working to restore access, with no return date announced. 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. Anthropic https://www.anthropic.com/news/fable-mythos-access disagreed 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 → https://www.anthropic.com/news/fable-mythos-access - 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. Is Fable 5 back? No As of Tuesday, June 16th, 1:18 PM, Claude Fable 5 is unavailable. Share Know the moment it flips. No newsletter, no follow-ups. Unsubscribe anytime. · Privacy /privacy