ModelRefs / Context Precision — AI Glossary
Context Precision — AI Glossary
A RAG evaluation metric measuring what fraction of retrieved context chunks are actually relevant to answering the question.
Overview
Context precision (RAGAS) measures retrieval quality: of all retrieved chunks, how many are actually relevant? Low precision means the retrieved context is polluted with irrelevant passages that distract the generator. Computed by grading each retrieved chunk against the question using an LLM judge.
Reference details
| Topic | evaluation |
|---|---|
| Last reviewed | 2026-06-24 |
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Frequently asked questions
What is Context Precision?
A RAG evaluation metric measuring what fraction of retrieved context chunks are actually relevant to answering the question.
What concepts are related to Context Precision?
Closely related concepts include context recall, faithfulness, ragas.