Claude AI developer Anthropic announced June 30 that it would restore access to Claude Fable 5 on July 1 after the U.S. Commerce Secretary announced that the government had lifted export controls on Fable 5 and Mythos 5, the more advanced cybersecurity-focused AI model also blocked last month. Anthropic also announced that for some routine tasks, including coding and debugging, Fable 5 would fall back to Opus 4.8.