LESSON 4.2
Handling the no-answer case
Learn key techniques and workflows in Retrieval-Augmented Generation from Scratch.
21m
advanced
4,413 students
Overview
The hardest behaviour to get is a clean "I don’t know". Make it an explicit, allowed output instead of the model’s last resort.
In this lesson you will:
- Detect when retrieval returned nothing relevant
- Make abstaining an explicit, acceptable outcome
- Offer a next step instead of a dead end
Pro Tip
An empty state that points somewhere useful beats a fabricated answer every single time.