They already offer “superior models at a premium price” but the issue is that they are not that much superior than the open models and in some cases are even worse(I.e Anthropic Fable refuses to fix a login/signup page, not to mention any kind of actual opsec work).
You already can do more with open models than with proprietary models because you can’t tweak the proprietary models to your liking. Just as OpenAI and Anthropic went from 0 to a trillion they can go back just as fast.
Well that's a bad example because a UI isn't a model.
But if you hold that it's true that returns compound and that they do so for intelligence/performance for AI models, then having the lead matters quite a bit and eventually you'll just get into an iPhone vs Android Dollar General situation where sure they do the same thing and one is even substantially cheaper but all the profits go to the iPhone.
If you hold that the lead doesn't matter, then the buildout of data centers and compute capacity which is also what the Chinese are doing will just go to make money for American companies serving whatever open-source models come into being for the rest of however long the world itself lasts. Then China can take the lead and spend a trillion dollars, we'll copy their models (which according to you is a great strategy), and release them open source.
You can't have it both ways.