US Export Order Forces Anthropic to Disable Claude Fable 5 and Mythos 5 Worldwide

The US Commerce Department issued an export-control directive ordering Anthropic to immediately cut off foreign nationals' access to its top models, Claude Fable 5 and Claude Mythos 5, prompting Anthropic to disable both for all users worldwide to comply. The directive, delivered as a letter under Commerce Secretary Howard Lutnick's name on the evening of June 13, 2026, targeted foreign nationals inside and outside the US, including Anthropic's foreign employees. The company's official statement makes clear that other models such as Claude Opus and Sonnet are unaffected.