The United States Government has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States. This includes Anthropic employees who are foreign nationals.
Anthropic is currently disabling Fable 5 and Mythos 5 for all customers.
They can still use geo-blocking rather than no blocking at all. They also don't have to call it "weapon export control legislation". Apart from geo-blocking, they can refuse service payments from foreign countries. Fable wasn't free. ID verification is also still on the table.
Not everyone in the administration has the same agenda.
There are likely people who want export controls on all models and people who wants them on no models and putting on on Anthropics model was the easiest to get consensus for at this point in time.
That does not mean that OpenAI is safe in the future as those people who want more export controls can leverage the win.