Anthropic pulls Fable and Mythos after US export control order

[AINews] Fable and Mythos officially too dangerous to release

Anthropic suspended access to Claude Fable 5 and Mythos 5 for all foreign nationals on June 13, following a US government export control directive. The models had launched only 3 days earlier. Anthropic says the order is based on verbal evidence of a narrow, non-universal jailbreak and believes it's a misunderstanding. Downstream products like Cognition Devin and Agent Arena immediately removed the models. Engineers framed this as a sovereignty risk: closed APIs can vanish overnight due to geopolitics. Artificial Analysis noted its Intelligence Frontier chart moved backward for the first time. The post does not disclose specific jailbreak details or a restoration timeline.

Why it matters: Anthropic's flagship models pulled after 3 days by US export controls is a once-a-year industry shock. All three HKR axes hit hard. Not a perfect 100 only because we currently have only Anthropic's side of the story — the government's specific order hasn't been made public yet.