It could happen, but it would be an anomaly. In general if a business is to make money it does not let itself become a commodity vendor. You can't go to General Burger and select from one of a Wendy's or Big Mac or Burger King burger. You can't go to Microsoft and buy a Playstation. There are exceptions, of course, but whoever is building this stuff is going to want to make money and becoming a commodity vendor isn't the path toward that goal.

It's the same reason that open source software has been a commercial failure except for a few evangelists or whoever becomes a cool "thought leader" by releasing a new library and then gets invited to conferences to speak. Software was commoditized in many ways, yet all the big software vendors made more money than GOD because they took whatever commodity parts came to exist and monetized them.

I think the models can be improved with either recursive improvement (it would be faster with better hardware but if you can do it at all you just need time) and algorithmic developments. I don't know what those would be, but usually we see improvements to both over time. The algorithms will tend to be trade secrets as well.