←Applied AI Engineering
Chapter 7 of 23 · Level 3 · Giving Models Knowledge (RAG)

RAG Fundamentals

The knowledge-cutoff problem, chunking, vector stores, and similarity search.

  1. 7.1

    RAG Is a Search Problem Wearing an AI Costume

    RAG lets a model answer from your data without retraining. But RAG is a search problem in disguise, and it fails exactly where search fails, not where AI fails. Here is the whole retrieval pipeline, including the parts everyone skips.

    6 min read
    →