So this is the model that investors see. The reality is quite different. People and orgs are not stupid and want to avoid vendor lock-in.
So in reality:
* Wrapper don't only rely on OpenAI. In fact, in order to be competitive, they have to avoid OpenAI because it's terribly expensive. If they can get away with other models, the savings can be enormous as some of these can be 10x cheaper.
* Local models are a thing. You don't need proprietary models and API calls at all for certain uses. And these models get better and better each year.
* Nvidia is still the dominant player and this won't change in the next years but AMD is really making huge progress here. I don't mention TPUs as they seem to be much Google-specific.
* Microsoft is not in any special position here - I was implementing OpenAI API integrations with various API gateways and it's by no means something related to Azure only.
* OpenAI's business model is based on faith at this moment. This was debated ad nauseam so it makes no sense to repeat all arguments here but the fact is that they used to be the only one game in town, then the leader, and now are neither, but still claim to be.