Key Points
- Andy Jassy reportedly flagged Anthropic's Claude Fable 5 to US officials.
- He told Treasury's Scott Bessent the model yielded cyberattack-useful info.
- The government then export-banned Fable 5 and Mythos 5.
- Amazon is one of Anthropic's largest investors.
The company that triggered the US crackdown on Anthropic's most advanced models may have been its own biggest backer. Amazon CEO Andy Jassy reportedly told Treasury Secretary Scott Bessent and other officials that Amazon researchers had used Anthropic's Claude Fable 5 to obtain information usable in cyberattacks — and days later, the government ordered Fable 5 and Mythos 5 cut off from foreign access.
What happened
According to the report, Jassy raised the concern directly with Bessent. The administration's AI czar, David Sacks, described the trigger as "a highly credible trusted partner of both Anthropic and the USG" coming forward with a jailbreak, and said "the Admin asked [Anthropic CEO Dario Amodei] to fix the jailbreak or de-deploy the model. Dario refused." Anthropic then disabled both models for all users to comply. Amazon, for its part, said only that it is "not uncommon for governments to seek our counsel on potential security risks" and that it does not "share the details of those discussions."
The conflict
Here is the part that complicates the official story: Amazon is one of Anthropic's largest investors, having put billions into the company, and it sells Claude to enterprises through AWS. So the partner that flagged the model to Washington is also the one with the most financial exposure to it. Whether that reads as responsible disclosure or as a competitor using a security process to hobble a rival's flagship depends on where you sit — and Amazon has its own frontier-model ambitions.
The read
Anthropic's counter is that the capability "causing government concern" already exists in other publicly available models, which reframes the ban as selective rather than safety-driven. Either way, the episode shows how the AI race now runs through Washington: a single backer's phone call to the Treasury Secretary can pull a frontier model off the market overnight. For founders, the lesson is that your cap table and your regulators are now the same battlefield.
Source: TechCrunch, Yahoo News
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