[lmeyerov]

Yes: That's essentially their fine-tuning offerings. They rewrite some weights in the top layers based on your input, and save+serve that for you.

It sounds like you would like a wrapped version tuned just for big context.

(As others write, RAG versions are also being supported, but they're less fundamentally similar. RAG is about preprocessing to cut the input down to relevant bits. RAG + an agent framework does get closer again tho by putting this into a reasoning loop.)

[brokensegue]

Fine tuning is not great for the use case of long documents. RAG is closer