Amazon CEO Andy Jassy reportedly raised security concerns about Anthropic's AI models, leading to a government export ban on two of them. Amazon researchers allegedly found vulnerabilities in Anthropic's Claude Fable 5 model that could be exploited for cyberattacks. Anthropic disputed the concerns, stating similar capabilities exist in other publicly available models.

Amazon CEO Andy Jassy reportedly told Treasury Secretary Scott Bessent and other officials that Amazon researchers used Anthropic's Claude Fable 5 model to obtain information that could aid cyberattacks, prompting the government to impose export controls on the Fable 5 and Mythos 5 models. Anthropic subsequently cut off worldwide access to the two models, though it maintains the capabilities at issue are already available in other public models. Amazon, a major Anthropic investor, declined to detail its discussions with the government.