US government just forced Anthropic to pull Fable 5 and Mythos 5 for all users
US government just forced Anthropic to pull Fable 5 and Mythos 5 for all users

US government just forced Anthropic to pull Fable 5 and Mythos 5 for all users

Anthropic put out a statement today. The US government issued an export control directive citing national security, suspending access to Fable 5 and Mythos 5 for any foreign national, inside or outside the US. To comply, Anthropic had to disable both models for everyone immediately. Other Claude models are not affected.

The stated reason is a potential method to bypass Fable 5’s safeguards. But Anthropic says it reviewed the demonstration and found the vulnerabilities were minor, already known, and discoverable by other public models (they specifically point to GPT-5.5) without needing any bypass.

Anthropic is complying but openly disagrees. Their argument is that recalling a commercial model used by hundreds of millions over a narrow potential jailbreak could effectively freeze new model deployments across the whole industry if it became the standard.

What I find interesting is the precedent. If a verbal report of a minor, non-universal jailbreak is enough to pull a frontier model, where does that leave every other provider?

Curious what people here think. Reasonable safety intervention, or government overreach that hurts the whole field?

submitted by /u/Direct-Attention8597
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