The US banned Anthropic's Fable 5 release, but the numbers don't seem to care

The US government compelled Anthropic to withdraw its Fable 5 and Mythos 5 models after Amazon researchers reportedly identified a guardrail bypass, raising immediate national security concerns. Cybersecurity researchers have since pushed back with an open letter, and Anthropic itself has noted the same vulnerabilities exist across other models—a detail that quietly undercuts the policy's internal logic. The episode surfaces a recurring tension between reactive government intervention and the distributed, cross-platform nature of AI risk.