How ChatGPT differs from a RAG knowledge assistant
Paste your procedure into ChatGPT and ask it a question. The answer comes from three places at once and does not tell you which: partly from what you pasted, partly from what it read on the internet when it was trained, and partly from what it made up so the sentence would fit. All three arrive in the same confident tone.
An AI knowledge base cannot do that. Before answering, it looks for the passages that deal with your question inside your documents and forces the model to answer only from them. That is the technique the industry calls RAG. It is why every answer comes with the document, page and version it is drawn from, and why, when the answer is not in your documents, it says so instead of filling the gap.
The practical difference shows in what you can do next. A ChatGPT answer has to be checked before you use it, and checking it costs as much as finding it yourself would have. An answer with its citation can be checked in ten seconds by opening the document, and that is the only thing that turns this into a working tool.