I have to disagree. For the sake of argument say Elon Musk had his own personal, uncensored SOTA model. He has the cash and politics to make that a realistic goal. Would people want him to have that? Not really, hence secrecy as well.

Oh I really did mean "anthropic" and "fable class" in that paragraph. Different people in Anthropic's position would do things differently. But they're them and I think there's pretty good reason to think they really are the only ones with a model of that class so far.