Anthropic has abruptly disabled access to its flagship Fable 5 and Mythos 5 artificial intelligence models after the U.S. government ordered the startup to block foreign nationals from using the systems, citing national security authorities.
The startup said it received the export-control order at 5:21 p.m.
ET on Friday, and it covers "any foreign national, whether inside or outside the United States," including foreign-national employees.
Anthropic responded by suspending access for all users, saying it was necessary to ensure compliance.
Other models remain unaffected, the company said in a statement.
