This actually has nothing to do with fine-tuning in the technical sense. You are actually using vector search and injecting the results of that into the prompt

This actually has nothing to do with fine-tuning in the technical sense. You are actually using vector search and injecting the results of that into the prompt for GPT. It is a good approach, but to use the word “fine-tuning“ for that is confusing, given that OpenAI actually has a process for fine-tuning, which works in a very different way.