---
title: Prompt
slug: nccd0545
canonical_url: https://docs.coveo.com/en/nccd0545/
collection: glossary
source_format: adoc
---
# Prompt
A {doctitle} is an instruction that a generative large language model (LLM) interprets to generate text.
[Relevance Generative Answering (RGA)](https://docs.coveo.com/en/nbtb6010/) uses [prompt engineering](https://docs.coveo.com/en/nccd0039/) to create a detailed prompt that includes instructions, the [query](https://docs.coveo.com/en/231/), and the most relevant segments of text to use.