by Amit Shekhar · 6 July 2026
How does HyDE work in RAG?
How HyDE works in RAG, which is the clever trick of searching with a fake answer. We will also see why searching with the plain question is weak, why a fake answer searches better, how HyDE works step by step with a worked example, and when to use it in the real world.
Read on Outcome School ↗then come back to lock it in
Before you read, guessWhy is searching with only the question considered weak?
Ten seconds, a guess, then read — a wrong guess still makes the answer stick.
What this article covers
- What is RAG in simple words
- What is the search problem in RAG
- Why searching with the question is weak
- What is HyDE
- Why searching with a fake answer works better
- How HyDE works step by step
- A worked example of HyDE
- A simple code example of HyDE
- Advantages of HyDE
- Disadvantages of HyDE
- When to use HyDE
- Summary
The article lives on outcomeschool.com. Read it there, then come back: the tutor in the margin has read it and will answer questions, and the questions below check what stayed.