Anthropic’s safety warnings may have just backfired — the government has pulled the plug on its most powerful AI

The U.S. government has ordered Anthropic to shut down its powerful AI models, Claude Fable 5 and Claude Mythos 5, citing national security concerns. While Anthropic complied with the directive, the company disputes the government's reasoning, which reportedly stems from a potential jailbreak of the Fable 5 model.
Why it matters
This represents a significant escalation in government intervention regarding AI safety and export controls, potentially setting a precedent for how regulators manage the deployment of frontier AI models.
The U.S. government on Friday ordered Anthropic to immediately shut off access to two of its most powerful AI models — Claude Fable 5 and Claude Mythos 5 — citing national security concerns. Anthropic announced on X that it has complied, but it made clear it thinks the government got this one wrong .
The article presents both the government's security-focused directive and Anthropic's perspective on the overreach, maintaining a balanced reporting style.
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