US Lifts Export Ban on Anthropic’s Advanced AI Models

Sun Sep 06 2026 04:54:18 GMT+0000 (Coordinated Universal Time)

The U.S. Commerce Department has removed recent export restrictions on Claude Fable 5 and Mythos 5 after Anthropic was ordered to halt them due to security concerns.

The U.S. government has removed export controls on Anthropic’s two top‑tier AI models after a brief pause triggered by national‑security worries. Anthropic says it will open up access to Claude Fable 5 and Mythos 5 on Wednesday. The models, part of the Claude platform, rival ChatGPT and Gemini and can perform deep reasoning or identify code vulnerabilities. Anthropic previously argued that a narrow jailbreak did not justify recalling a model used by millions. Officials from the U.S. Department of Commerce have yet to comment.

The US government has lifted export controls on Anthropic’s most advanced AI tools, just weeks after a US Department of Commerce order demanded that the company restrict access due to national‑security concerns, the company says.

Anthropic announced on social media it will begin restoring access to Claude Fable 5 and Mythos 5 on Wednesday after being notified that the US Department of Commerce has lifted export controls on the two models.

The models are the firm’s most advanced AI tools, which were abruptly suspended on 12 June over concerns that they could be used by hackers to exploit weaknesses in computer systems.

Mythos and Fable are two of Anthropic’s AI models built on its Claude platform – a rival to the likes of OpenAI’s ChatGPT and Google’s Gemini.

Fable 5 is a version of the AI model for the consumer market, capable of deep reasoning and can perform complex tasks independently.

Mythos 5 is a version of the platform designed for businesses and cybersecurity experts. It is said to be able to identify vulnerabilities in computer code and exploit them.

The firm previously said that US authorities had not pinpointed specific concerns about its technology even as it ordered both platforms to be suspended worldwide.

“Our understanding is that the government believes it has become aware of a method of bypassing, or “jailbreaking” Fable 5,” the company said at the time, referring to a process of slipping past software safety restrictions to unblock features.

“However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people.”