"Our models are so good they are banned by the government"

I don't see any way how releasing an incrementally better model could get even close to the positive PR. For every Mythos token not sold because of this they'll sell dozens of Fable, Opus and so on. Perhaps the ban did not origin at Anthropic, as a PR stunt, but genuinely at some government desk. Entirely possible. But Anthropic would be foolish to not pick up that ball and drag it out a little.