It only depends on the interface. There's a lot of projects which present the openai interface to whatever you want.

Not quite certain about your meaning. Could you be more specific? RAGFlow does not have its own LLM model or souce code. RAGFlow supports API calling from third-party large language model providers, as well as local deployment of these large models. RAGFlow has open-sourced these two parts of codes already.

Just link them to https://github.com/infiniflow/ragflow/blob/main/rag/llm/chat... :)