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Tom’s Hardware
Tom’s Hardware
Technology
Luke James

Anthropic restores Claude Fable 5 as US lifts export controls — single filter now blocks prompt that could identify software vulnerabilities and write code to exploit them

Anthropic Claude Fable.

Anthropic has restored global access to Claude Fable 5, a day after the U.S. Department of Commerce withdrew the export controls it imposed on the model on June 12th, according to a company blog post. The fix that ended an 18-day standoff was a single safety filter tuned to block one technique flagged by Amazon researchers, with Commerce's own Center for AI Standards and Innovation (CAISI) reviewing the safeguards before the controls came off.

Fable 5 returns across Claude.ai, the Claude Platform, Claude Code, and Claude Cowork today, with access on AWS, Google Cloud, and Microsoft Foundry to follow. The June 12th directive had barred any foreign national, including Anthropic's own non-citizen staff, from using Fable 5 or the more capable Mythos 5, which it’s built on. With no way to verify the nationality of its users, Anthropic pulled both models worldwide.

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