Yes, but the API at the end is providing the core functionality. Simply swapping out one LLM model for another - let alone by a different company altogether - will completely change the effectiveness and usefulness of the application.
One would hope, that since the problem these models are trying to solve is language modeling, they would eventually converge around similar capabilities
Their interfacing software __is__ open source; and, they're asking for your OpenAI api key to operate. I would expect / desire open source code if I were to use that, so I could be sure my api key was only being used for my work, so it's only my work that I'm paying for and it's not been stolen in some way.
My older brother who got me into coding learned to code in Assembly. He doesn't really consider most of my work writing in high level languages to be "coding". So maybe there's something here. But if I had to get into the underlying structure, I could. I do wonder whether the same can be said for people who just kludge together a bunch of APIs that produce magical result sets.
> But if I had to get into the underlying structure, I could.
How do you propose to get into the underlying structure of the OpenAPI API? Breach their network and steal their code and models? I don't understand what you're arguing.