The Anthropic Claude export ban that froze access to the company’s two most powerful AI models for nearly three weeks has been lifted, with the US Department of Commerce confirming that a licence is no longer required to export the Fable 5 or Mythos 5 models, according to Reuters.
Both models were suspended on 12 June after the government concluded they posed national security risks, citing concerns that they could be exploited to probe weaknesses in computer systems. The ban lasted less than three weeks, but it was not quietly resolved: Commerce Secretary Howard Lutnick’s original letter, dated 13 June, warned Anthropic it would face criminal and civil penalties if it failed to comply, invoking US laws that permit export controls on civilian technology usable for military intelligence purposes, as Bloomberg reported.
What Anthropic agreed to restore its Claude models
The resolution required concrete concessions. Anthropic has agreed to proactively detect and address security risks, collaborate with the government on future model releases, and alert authorities to any malicious activity. The Commerce Department retains the right to reimpose restrictions if it judges that necessary.
In his letter lifting the controls, Lutnick wrote: ‘Over the past two weeks, we have worked closely with Anthropic to analyse and approve Fable 5 to ensure alignment across the US Government and strengthen America’s leadership in AI,’ as cited by dMarketForces.
The government did not wait for the full resolution to begin partial restoration. On 26 June, the US government granted Anthropic permission to release Mythos 5 to a group of roughly 100 companies and federal agencies, ahead of the broader lifting, CNBC reported.
Full access is being restored to Fable 5 from Wednesday, 1 July, across Claude.ai, Claude Platform, Claude Code, and Claude Cowork, according to AIN.ua. Mythos 5 access had already been reinstated for a select list of organisations in the US prior to the full lifting.
The jailbreak dispute at the heart of the Anthropic Claude export ban
Anthropic had pushed back hard on the rationale for the original suspension. The company said at the time that US authorities had not pinpointed specific concerns about its technology, and added: ‘Our understanding is that the government believes it has become aware of a method of bypassing, or “jailbreaking” Fable 5.’ It argued that ‘the finding of a narrow potential jailbreak should [not be] cause for recalling a commercial model deployed to hundreds of millions of people.’
The jailbreak question exposes a tension that has not disappeared. Officials reportedly told Wired that Anthropic would need to guarantee its models cannot be jailbroken at all, a standard that most security experts consider technically impossible to meet, according to Tech Policy Press. If that remains the government’s working benchmark, the current arrangement is inherently provisional.
Fable 5 is designed for consumers, capable of deep reasoning and independent task completion. Mythos 5 is aimed at businesses and cybersecurity professionals, and is said to be able to identify and exploit vulnerabilities in computer code. Both were released on 9 June and suspended three days later. They compete in the same space as OpenAI’s ChatGPT and Google’s Gemini.
The episode establishes a new precedent: the US government can invoke export-control law against a domestically developed AI model, extract security commitments within weeks, and retain a standing right to reimpose controls. Whether that becomes routine leverage over the AI industry, or a one-off response to a specific threat, depends entirely on what the government decides to do with it next time a model clears a capability threshold it finds uncomfortable.
