Overview
- Anthropic disabled global access to Fable 5 and Mythos 5 after the Commerce Department on June 12 issued a directive barring foreign‑national use, which the company said it could not reliably enforce per user.
- Anthropic released Fable 5 on June 9 and had previewed Mythos 5 to select partners for cybersecurity testing before the directive forced both models offline within days of public launch.
- U.S. officials say a jailbreak technique that can bypass model safeguards motivated the export controls while Anthropic and some researchers say the vulnerability is narrow and similar issues exist in other platforms.
- The company and senior technical staff are holding daily talks with the administration to resolve the order; President Trump told Axios on June 19 he no longer views Anthropic as a national security threat and negotiations are ongoing.
- Allies and industry leaders warn the move exposes gaps in AI governance, risks degrading defensive tools, and is accelerating calls for 'trusted partner' access and for Europe and others to build local compute and model capacity.