The Trump administration is softening its stance on Anthropic, allowing the company to make its cybersecurity-oriented model Mythos 5 available to more than 100 specific U.S. government agencies and companies, according to Semafor and Reuters. The directive permits non-American employees at those organizations, as well as Anthropic's own non-American employees—who were included in the original ban—to access the model.
"I have determined that appropriate safeguards are in place to permit certain trusted partners to access the Claude Mythos 5 Model," Commerce Secretary Howard Lutnick wrote to Anthropic's chief compute officer Tom Brown on Friday, according to a letter seen by Semafor. The administration did not address the release of Fable 5, a version of Mythos 5 that had been widely released a couple of days before the ban because it was said to have more protections. Both models were pulled after their guardrails were allegedly bypassed easily by security researchers.
On Friday, Anthropic publicly acknowledged the progress in a post on X, stating: "Since June 12, we've been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure." The company said it is restoring access for these organizations quickly and continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.