US gov't lifts restrictions on powerful AI models, Anthropic says

Anthropic will soon begin restoring access globally to its most powerful AI models, Fable 5 and Mythos 5, after the U.S. government lifted a restriction on where they could be released, the company said on June 30.

Over the past couple of weeks, the Trump administration has invoked national security concerns to limit the ability of major U.S. tech companies to release advanced models, including those from Anthropic which some researchers feared could be exploited to bypass cybersecurity measures.

"We've received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5," Anthropic posted on X. "We'll begin restoring access tomorrow."

Just four days ago, the company said it had received authorization from the government to allow a small group of American cybersecurity firms to access Mythos 5.