I would look at articles on building an open source RAG pipeline. Generation (model) is the last in a series of important steps -- you have options to choose fr

I would look at articles on building an open source RAG pipeline. Generation (model) is the last in a series of important steps -- you have options to choose from (retrieval, storage, etc) in each component step. Those decisions will affect the accuracy you mention. Langchain, llamaindex have good resources on building such a pipeline the last I checked