Anthropic’s most powerful chatbots are living up to their names. On Friday, the White House placed severe export controls on Mythos, a model purported to function as a hacking super-weapon, and Fable, a sanitized variant meant for public consumption.

The Commerce Department instructed Anthropic to suspend access to Fable 5 and Mythos 5 for any foreign national, which Anthropic said requires disabling the models entirely.

Anthropic released a special version of its Mythos AI model — called Fable 5 — earlier this week, making some of the advanced capabilities of its tightly controlled Mythos system…