Anthropic said on Tuesday that the American Commerce Department lifted export controls on its most advanced Fable and Mythos AI models, less than three weeks after the company was ordered to suspend their access over national security risks.
Washington has stepped up oversight of new model releases to identify potential threats amid concerns that advanced AI models could be misused by military intelligence in China, Russia or other countries of concern.
Order That Restricted Access
A June 12 order requiring Anthropic to immediately restrict access for Mythos 5 and Fable 5 to foreign nationals prompted the company to disable both models for all users as there was no way to verify nationality in real time.
Last week, the U.S. government allowed the company to release Mythos 5 but only to some “trusted” U.S. organizations. The model — designed to detect cybersecurity vulnerabilities — had earlier been made available to a broader group of companies as part of its Glasswing project.
Anthropic said on Tuesday that all export controls on the models have now been lifted after the implementation of safeguards.
It is working with the U.S. government to expand access to Mythos 5 to the broader set of domestic and international partners in the Glasswing program, it said in a blog post. Fable 5, which is intended for the general public and has stronger safeguards, will be available from Wednesday.
Deepening Govt Collaboration
Anthropic, which has had a rocky relationship with U.S. President Donald Trump’s administration this year, also said it was deepening its collaboration with the U.S. government, giving designated government partners expanded early access to both Fable and Mythos models.
It is also working with Amazon, Microsoft, Google and other Glasswing partners to develop shared common standards to assess and fix potential AI jailbreaks (techniques that bypass safeguards), including a system to rank the severity of such jailbreaks.
A letter to Anthropic from U.S. Commerce Secretary Howard Lutnick that was seen by Reuters said Anthropic had agreed to work diligently with the U.S. government on protocols for Mythos, Fable and future models and to inform the U.S. government of any malicious activity.
Lutnick, however, said that the department “reserves the right to reevaluate the decisions made in this letter and the necessity of reimposing a license requirement, should circumstances change or should Anthropic fail to adhere to its commitments”.
(with inputs from agencies)
