government-oversight
1 article tagged with government-oversight
June 19, 2026
model releaseAnthropic
US government forces Anthropic to pull Fable 5 and Mythos 5 models over guardrail bypass concerns
The US government forced Anthropic to withdraw its Fable 5 and Mythos 5 models, citing national security concerns after Amazon researchers allegedly discovered a method to bypass Fable 5's safety guardrails. Cybersecurity researchers have signed an open letter opposing the ban, with Anthropic noting similar vulnerabilities exist in competing models.