Anthropic cuts off Fable 5 and Mythos 5 access after White House order

All the news about Anthropic’s new AI fight with the White House

On June 12, the White House ordered Anthropic to block foreign access to its newest models, Fable 5 and Mythos 5, launched just three days earlier. Anthropic said Fable 5 exceeds any model it has ever made generally available, while Mythos 5 uses the same base model with some safeguards lifted. The order followed Amazon-White House talks after researchers reportedly found ways to get Fable 5 to output info usable in cyberattacks. Anthropic cut access for all users, stating it complies with the legal directive but disagrees that a narrow jailbreak finding justifies recalling a model deployed to hundreds of millions. The post does not disclose the specific legal basis for the order or a timeline for restoring access.

Why it matters: Direct White House intervention against a flagship model release is a top-tier industry event. The post doesn't detail the ban's scope or Anthropic's formal response, but the conflict itself is seismic.