Claude Fable 5 is close to coming back after weeks of government restrictions

The Trump administration is moving toward lifting restrictions on Anthropic’s Fable 5 AI model, which has been offline since June 12 following government intervention over security concerns. A source close to the situation tells Axios that access could be restored as early as next week, pending final approval from the Pentagon and the National Security Agency.

The move signals a significant thaw in a months-long standoff between the administration and Anthropic. Defense Secretary Pete Hegseth had previously designated Anthropic a “Supply-Chain Risk to National Security” after failing to reach an agreement with CEO Dario Amodei over Pentagon use of the company’s Claude models.

Mythos 5 already partially restored

In a concrete step toward de-escalation, Commerce Secretary Howard Lutnick sent a letter to Anthropic on Friday allowing the company to release its Mythos 5 model to more than 100 trusted US institutions, including major companies and government agencies. As Reed Albergotti and Ben Smith report for Semafor, Lutnick cited “significant progress” in talks between the government and Anthropic, and noted that the company “has committed to work with the U.S. government on protocols and standards and releases.”

Fable 5, described as a weaker consumer-facing version of Mythos 5, is not yet covered by the letter. Its return remains subject to Pentagon and NSA sign-off.

What Fable 5’s absence has meant for users

Fable 5 had been live for just three days before it was pulled. Developers had praised it as an exceptional coding tool. Stripe reportedly used it to overhaul a 50-million-line codebase in a single day, a task estimated to take engineers more than two months manually. When access disappeared, automated workflows stopped mid-task.

It remains unclear whether subscribers who were promised free access to Fable 5 will get it back on the same terms, or whether additional fees or identity checks will apply on its return.

Both Anthropic and OpenAI are now pushing for a formal, transparent review process for powerful new models, rather than the current case-by-case government intervention.

Sources

• Scoop: Powerful Anthropic model, Fable 5, on track to return soon – Axios
• Exclusive: US releases powerful Anthropic model Mythos to some US companies – Semafor