SAN FRANCISCO: Anthropic will soon begin restoring access to its most powerful AI models, Fable 5 and Mythos 5, worldwide after the U.S. government lifted restrictions on where they can be released, the company announced Tuesday.
Over the past few weeks, the Trump administration has cited national security concerns to limit the ability of major U.S. technology companies to release advanced models. That includes Anthropic’s model, which some researchers feared could be exploited to circumvent cybersecurity measures.
Anthropic posted on X, “We have received notification that the Department of Commerce has lifted export restrictions for Claude Fabre 5 and Mythos 5. We will begin restoring access tomorrow.”
Just four days ago, the company announced that it had received permission from the government to allow a small group of U.S. cybersecurity companies to access Mythos 5.
“Anthropic has been working with the U.S. government to address the risks associated with the covered models,” Secretary of Commerce Howard Lutnick said in a June 26 letter to the company, as reported by Politico.
On June 12, the government abruptly forced Anthropic to cut off access to two of its most advanced artificial intelligence models after discovering vulnerabilities in security measures put in place to prevent misuse of the tools.
On Tuesday, Lutnick told Anthropic in a letter that the Trump administration had “rescinded” previous restrictions on the company’s model releases, Politico reported.
The letter indicated that the Trump administration is satisfied, at least for now, that Anthropic has “taken steps in close coordination with the U.S. government to address the risks associated with Claude Mythos 5 and Claude Fabre 5.”
Like Anthropic, rival AI institute OpenAI also complied with Washington’s request to limit its own release of a new powerful model called GPT-5.6 to a limited set of approved partners.
“This is not quite the process we think is optimal,” OpenAI CEO Sam Altman said in a post to X on Friday, explaining the launch of GPT-5.6.
Anthropic did not immediately respond to a request for comment Tuesday.
~A new frontier~
On June 2, the Trump administration called on the federal government to take several steps over the next two months to take action on AI and cybersecurity. This includes creating a voluntary “framework” for private companies such as Anthropic and OpenAI to work with governments to test and release powerful “frontier” AI models.
Susie Wiles, the president’s chief of staff, posted on X on Tuesday that the Trump administration is grateful for the help of tech companies, but did not name any of them.
“I want to thank the companies across industries that continue to work closely with the White House to implement the Executive Order on AI and Cybersecurity,” Wiles said. “This includes access to advanced models, guardrail testing and security excellence.”
Earlier in the day, CIA Director John Ratcliffe compared the capabilities of cutting-edge artificial intelligence models to nuclear weapons, in a tacit defense of the Trump administration’s recent hardline approach to controlling the release of the most powerful AI technologies.
“In my conversations with many of the president’s other national security and economic security advisers, we talk about the impact of these frontier AI models,” Ratcliffe said in a speech at the AWS Summit in Washington.
“It would be fair to call that capability akin to a digital nuclear weapon,” Ratcliffe said.
