Hello I am trying to change the underlying LLM, but am new and this example is not very helpful to me: https://gpt-index.readthedocs.io/en/latest/core_modules/model_modules/llms/usage_custom.html#example-changing-the-underlying-llm

I'm wanting to use GPT4All and am looking at the langchain intructions too... but do not know how to put it all together: https://python.langchain.com/docs/integrations/llms/gpt4all, https://python.langchain.com/docs/integrations/providers/gpt4all

Hey all, just tweeted @gpt_index about this. But the web page showing which llm's are supported by LlamaIndex is not working. It's a 404 error.

Is that info housed anywhere else in the mean time?