Anthropic will soon begin restoring access globally to its most powerful AI models, the Fable 5 and Mythos 5, after the US government lifted a restriction on where they could be released, the company said on Tuesday.
Over the past two weeks, the Trump administration has invoked national security concerns to limit the ability of major US technology companies to release advanced models, including those from Anthropic, which some researchers feared could be used to bypass cybersecurity measures.
“We have received notice that the Department of Commerce has removed export controls for Claude Fable 5 and Mythos 5,” Anthropic posted on X. “We will begin restoring access tomorrow.”
Just four days ago, the company said it had received authorization from the government to allow a small group of US cybersecurity firms access to Mythos 5.
Commerce Secretary Howard Lutnick said in a June 26 letter to the company that “Anthropic has been working with the US government to address the risks associated with Covered Models,” Politico reported.
The government abruptly forced Anthropic to cut off access to its latest two AI models on June 12 after discovering weaknesses in safeguards put in place to prevent misuse of the tool.
On Tuesday, Lutnick told Anthropic in a letter that the Trump administration had “withdrawn” its previous restrictions on the release of the company’s models, Politico reported.
The letter indicated that the Trump administration was satisfied, at least for now, that Anthropic had “taken steps in close coordination with the US government to address the risks associated with Claude Mythos 5 and Claude Fable 5.”
Like Anthropic, rival AI lab OpenAI has also complied with Washington’s demands to limit its release of a new, powerful model called GPT-5.6 to a limited set of approved partners.
“This is not the process we think is optimal,” OpenAI CEO Sam Altman said Friday in a post on X, along with an explanation of the GPT-5.6 release.
Anthropic did not immediately respond to a request for comment on Tuesday.
– New Frontiers –
The Trump administration issued an executive order on June 2 calling on the federal government to take multiple steps over the next two months to take action on AI and cybersecurity — including creating a voluntary “framework” for private companies, such as Anthropic and OpenAI, to test and release their powerful “frontier” AI models in cooperation with the government.
Susie Wiles, the president’s chief of staff, tweeted Tuesday on X that the Trump administration was grateful for cooperation from tech companies, though she did not name any.
“My appreciation to companies across industries who continue to work closely with the White House to implement the President’s executive order” on AI and cybersecurity, Wiles said. “This includes excellent work around advanced model access and guardrail testing and safety.”
Earlier in the day, CIA Director John Ratcliffe compared the capabilities of the most advanced models of artificial intelligence to nuclear weapons, in a tacit defense of the Trump administration’s latest tough line on controlling the release of more powerful AI technology.
“In conversations with many of the president’s other advisers on national security and economic security, we’re talking about the impact of these frontier models of AI,” Ratcliffe said during a speech at the AWS Summit in Washington.
“It wouldn’t be wrong to refer to their capabilities as akin to digital nukes,” Ratcliffe said.
