Anthropic has disabled all access to its latest AI model, Fable, after the American government ordered it to suspend access for all non-U.S. users.

“The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance,” Anthropic said in a statement Friday evening.

Fable 5 is a less powerful version of the company’s Mythos model, which Anthropic initially withheld from a larger audience for fear that the model was too capable of exploiting software vulnerabilities.

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