If you need to quickly build a prototype using a customized LLM flow, you can use this nice open UI visual tool called Flowise and it's open source. It offers a builin templates that .

Requirements for this:

OpenAI Api key (Free but credit card required)
Pinecone API key (Free no credit card required)

After cloning, installing and running Flowise you will see an interface like this:

Head to Marketplaces and choose Conversational Retrieval QA Chain template. Then save as Chatbot and get ready to paste your OpenAI keys into the 2 modals and Pinecone API key as well with it's environment "us-west4-gcp".

You need to create an index in Pinecone with a name and importantly the dimensions of 1536, number that OpenAI uses with their embeddings.

For this template you can upload a text file with some context about your product or project, like a README file. I decided to replace the document loader input (Text File) for a Github repository (https://github.com/openai/whisper) and reconnected the text and document inputs. That's it. You can expand the chatbot in the top right side and start interacting with your model.

How to setup please?

Flowise

Building an AI Document Chatbot Using Flowise, ChatGPT OpenAI & Pinecone

Let's Build Something Remarkable