The foundation model companies are screwed. Only shovel makers (Nvidia, infra companies) and product companies are going to win.
https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/
Commoditizing the AI/intelligence part means that the main advantage isn't the bits - its the atoms. Physical dexterity, social skills and manufacturing skills will gain more of a comparative advantage vs intelligence work in the future as a result - AI makes the old economy new again in the long term. It also lowers the value of AI investments in that they no longer can command first mover/monopoly like pricing for what is a very large capex cost undermining US investment in what is their advantage. As long as it is strategic, it doesn't necessarily need to be economic on its own.
The thing is, model is in effect a piece of software that has almost 0 marginal cost. You just need a few, maybe even one company to release SOTA models consistently to really crash the valuation of every model companies because every one can acquire that single piece of software without cost to leave other model companies by themselves. The foundational model scene is basically in an extremely unstable state readily to return to a stable state of the model cost goes to 0. You really don't need the state competition assumption to explain the current state of affairs.
Given as you say the long term cost of AI models is marginally zero, I don't think this is a bad position to be in.