That is like saying training tensorflow models is just calling some APIs.
Actually making a system like this work seems easy, but isn't really.
(Though with the CURRENT generation or two of models it has gotten "pretty easy" I think. Before that, not so much.)
No idea about training tenserflow models - is it super complex or is it just calling a couple of APIs ? Langchain is literally calling an API. Maybe you need to get good with prompting or whatever, but I don't see where the complexity lies. Please let me know.