1. Overview In this project, we will build a Generative Question Answering model with Retrieval-Augmented Generation (RAG) with the help of LlamaIndex that can answer questions from internal documentation. We will also evaluate, iterate, and improve the model by using TruLens. The Python Notebook containing the complete model development process and the data used in this project can be found at Google Drive. 2. Retrieval-Augmented Generation (RAG) for Question Answering (QA) In the first part of this section, we will discuss the basic RAG pipeline for generative Question Answering from internal documentation.