Anthropic said it believed the US government had become aware of a potential means of jailbreaking Fable 5.

Anthropic's Fable AI was shut down following a U.S. government directive limiting access to U.S. nationals, exposing growing tensions between AI safety and regulation.

Anthropic said it received a government directive banning all foreign nationals, even those working at Anthropic, from accessing Fable 5 and Mythos 5 over national security…