The government cleared Fable 5 and Mythos 5 on June 30, weeks after a cybersecurity finding triggered an export order that froze access for everyone.

Anthropic had abruptly disabled its most advanced AI models - Mythos 5 and Fable 5 - for all users after the government's June 12 export control order.

The move comes as US scrutiny increasingly shapes how frontier AI models reach enterprises.