The same model can be reached two ways. Unmanaged, you call the model maker's own API and run it yourself. Managed, a cloud platform serves the identical model through its own endpoint and runs it for you. Same weights, same output. Managed costs more, because managed always costs more.

I took the managed route. It was the obvious one. I wired the platform to it and paid the premium on every call for longer than I want to admit. Not for a better model. For the same one, with convenience I did not need.

Managed is for teams who would rather not run the engineering. But the engineering is what I am building. Paying a cloud service to handle it was paying for help a platform-builder does not need, on a model I could have called directly for less. This is not one vendor's quirk. Every model worth building on is sold both ways.

If you are building a platform, you are the engineer. Managed is the expensive way, priced for someone who is not you.