A Deep Technical Exploration of Retrieval-Augmented Generation (RAG) with Transformers, DPR, FAISS, and BART

A Deep Technical Exploration of Retrieval-Augmented Generation (RAG) with Transformers, DPR, FAISS, and BART

Last Updated on May 13, 2025 by Editorial Team Author(s): Saif Ali Kheraj Originally published on Towards AI. RAG stands for Retrieval-Augmented Generation. It’s a clever setup where a transformer model (you know, the brains behind all gpts) doesn’t just make things up — it actually goes out, finds real information, and brings it back before answering. Figure 1: https://arxiv.org/pdf/2312.10997 In this post, I will walk you through how it all wo…