The Trump administration allows Anthropic to restore access to its advanced AI model “Mythos 5” for a limited set of U.S. customers after earlier restrictions. Multiple outlets report that the change follows weeks of negotiations with the government and a reversal of an export-related move that had barred Anthropic from providing Mythos 5 and a related model, Fable 5, to foreign nationals. The U.S. Commerce Department role is highlighted in reporting, including a letter seen by NBC News from Commerce Secretary Howard Lutnick to Anthropic. That letter says Anthropic’s efforts address security concerns and indicates “significant progress,” leading to approval for a constrained re-release to selected organizations.

While sources agree on the core outcome—partial clearance for Mythos 5—the reports differ on details. Some describe the access as limited to “trusted” companies and U.S. government agencies, while others emphasize uncertainty about which specific firms are chosen. Several accounts also note that the related model Fable 5 remains restricted or “stays dark,” suggesting the government approval applies only to Mythos 5 under the new terms.