The meaning, without the sneer
Think of the model as an engine. An engine is powerful. It is not a car. A useful car still needs controls, brakes, seats, and a reason someone picks it over walking.
The wrapper usually owns four things: the job the user wants done, the context that makes the model better at that job, the experience that makes the result easy to use, and the business system around it — accounts, limits, billing, support.
Calling an API is easy. Owning those four layers is the product. That is the AI wrapper meaning that actually matters.