US Export-Control Directive Cuts Off Foreign Access to Anthropic's Fable 5 and Mythos 5

The United States government has issued an export-control directive ordering Anthropic to suspend all access to its two most capable models, Fable 5 and Mythos 5, according to a statement the company published on June 12. The order treats access to the models themselves, not just their weights or training hardware, as a controlled item.

The restriction targets foreign users. The Russian-language technology outlet AI ML Big Data reported that the directive closed access to Fable 5 and Mythos 5 for people without US citizenship, and that the European Commission said it had begun assessing the consequences for European users and companies that had built on the models.

Talks between the Trump administration and Anthropic to lift the controls ended without an agreement, AI Post reported, citing WIRED. US officials reportedly remain concerned that Fable 5 can be jailbroken to unlock capabilities the government wants to keep restricted. That concern, if accurate, treats the model not as an ordinary commercial product but as a dual-use technology whose safety controls the government does not fully trust.

What is verified is narrow. Anthropic confirms that the directive exists and that it has suspended access. The jailbreak rationale comes from anonymous officials through a single news outlet and has not been independently reproduced. The scope, duration, and appeal process remain unstated in public documents.