When do we use LLM fine tuning vs. LLM RAG?

Hey guys, I am little confused as to when do we use LLM fine tuning vs. LLM RAG.



I remembered sometime mid-last year, I was told that with RAG, when a user asks the RAG-trained LLM a question which is outside of the RAG documents, the LLM will response back with rubbish answers. For eg. if we RAG-trained the LLM with Ninja Turtles documents, and then ask the LLM do Ninja Turtles speak English, the LLM will response back a …

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