What does HackerNews think of llama_index?
LlamaIndex (GPT Index) is a project that provides a central interface to connect your LLM's with external data.
Practically speaking the starting point should be things like the APIs such as OpenAI or open source frameworks and software. For example, llama_index https://github.com/jerryjliu/llama_index. You can use something like that or another GitHub repo built with it to create a customized chatbot application in a few minutes or a few days. (It should not take two weeks and $15,000).
It would be good to see something detailed that demonstrates an actual use case for fine tuning. Also, I don't believe that the academic tests are appropriate in that case. If you really were dead set on avoiding a leading edge closed LLM, and doing actual fine-tuning, you would want a person to look at the outputs and judge them in their specific context such as handling customer support requests for that system.
They also just tweeted this to showcase how it can work with multimodal data too: https://twitter.com/gpt_index/status/1635668512822956032?s=4...