The U.S. has removed the requirement for Anthropic to secure a license prior to exporting its Mythos and Fable models internationally, a stipulation that had effectively restricted public access to what are regarded as the most sophisticated AI models available to date.

The AI research lab announced that it would start reinstating access to the models on Wednesday, July 1.

On June 12, the U.S. administration classified the products as export-restricted technologies, meaning they could no longer be accessible to foreign individuals without specific authorization. Adhering to this regulation became unfeasible at scale, compelling Anthropic to cease public accessibility to the models entirely.

Following weeks of discussions, Secretary of Commerce Howard Lutnick stated that Anthropic “has consented to actively identify and mitigate security risks linked to the models; to collaborate closely with the U.S. government on protocols, standards, and releases for Mythos, Fable, and forthcoming models; and to notify the U.S. government of any malicious activities.”

Anthropic had previously made a public commitment to undertake much of this voluntarily, several months before the establishment of the export regulation. This is partly why cybersecurity professionals were doubtful about the initial restrictions. To them, the ban appeared more as a means of leverage, a method for the Trump administration to penalize Anthropic for its leaders’ open criticism of how the government, including the president’s political rivals, might leverage the technology.

Mythos was initially available only to a limited number of organizations starting in April to mitigate concerns regarding its capacity to detect and manipulate vulnerabilities in software, while a version named Fable was introduced to the public in June with enhanced security measures.

Nonetheless, as Asian AI firms began unveiling their own models nearing Mythos-level capabilities — including Fugu and Tulongfeng — the U.S. government faced pressure to relax its restrictions on Anthropic to maintain the competitiveness of American AI in the global market.

Last week, Lutnick authorized Mythos for release to selected customers approved by the White House. OpenAI’s recent models were also made available to a group of organizations sanctioned by the Trump administration, rather than the general public.

The Trump administration’s unpredictable stance on AI policy has resulted in a lack of clarity for companies throughout the industry regarding the governing rules for future model releases. An executive order enacted in June, which indicated an intent to evaluate models prior to release, received criticism from prominent analysts such as Dean W. Ball, who recently took on a policy role at OpenAI.