Petition to: The U.S. government agency responsible for the export-control directive of June 12, 2026

On June 12, 2026, the U.S. government issued an export-control directive suspending all access to Anthropic's Fable 5 and Mythos 5 models for every foreign national worldwide. To comply, Anthropic had to disable these models for all customers — including the hundreds of millions of legitimate users who depend on them.

We, the undersigned, ask that this directive be reviewed and rescinded.

The stated basis for the suspension is a narrow, non-universal "jailbreak" — reportedly nothing more than asking the model to read a codebase and fix software flaws. By the government's own demonstration, this surfaced only a small number of previously known, minor vulnerabilities, and the same capability is freely available from other publicly deployed models, including OpenAI's GPT-5.5. No universal jailbreak has been found, and no concerning jailbreak has produced a genuinely harmful result.
We believe this action is disproportionate for three reasons:

1. No unique risk. The capability cited is widely available elsewhere and is used daily by the defenders who keep systems secure. Removing one model does not remove the capability.
2. The standard is unworkable. If a single narrow jailbreak justified recalling a commercial model serving hundreds of millions of people, it would effectively halt all frontier model deployment across the entire industry.
3. Process matters. Government authority to block unsafe deployments should be exercised through a process that is transparent, fair, clear, and grounded in technical fact. A directive issued without specific technical detail, based on verbal evidence of a minor finding, does not meet that bar.

We are not asking for reckless deployment. Fable 5 launched with safeguards that independent red-teaming — including by the U.S. government and the UK AISI — found to be substantially stronger than any previously deployed model, paired with strict monitoring and 30-day data retention to detect and shut down abuse.

We ask the government to: (1) disclose the specific technical basis for the directive so it can be evaluated on the merits, (2) apply a consistent, evidence-based standard across all providers rather than singling out one, and (3) restore public access to Fable 5 and Mythos 5.

Sign to demand a transparent, proportionate, and fact-based review.