Both the OpenAI and Anthropic core APIs have become widely supported standards, so any application you ship today on their models can be trivially ported to other hosted providers or to your own infrastructure if you want to own the whole stack.

I agree that it pays to be wary of the additional abstraction layers they offer that purport to make your life easier, but for anything running standard completion calls or the like, I don’t see why this needs to be a concern.

I don't think API integration is the problem here. We also need evals that can be relied upon to measure the difference in performance.