Is this possible? I'm 90% sure that last month my chatbot was answering questions without using AI spend when it queried the knowledge base.

Hey, It can't. It uses an LLM to generate the answer. Hvis is a quick explanation of how RAG works https://youtube.com/shorts/xS55duPS-Pw?si=CzQ9Fc33TD_U210C

I might have missed the part about LLM integration in the official documentation. Could you kindly share any resources regarding Botpress's integration with LLM? I would be extremely grateful.

Hey there, Here's a link to the first part of "Generative AI" from their docs https://botpress.com/docs/cloud/generative-ai/best-practices/