Retrieval-augmented generation (RAG)

Concept

A pattern in which an AI model first retrieves relevant documents from a knowledge source and then writes its answer based on them. It reduces made-up answers and lets models use current, private data without retraining.

Glossary

Related topics in brief

• AI agent · Related to · Concept
  A software system that uses an AI model to pursue a goal on its own: it plans steps, calls tools or APIs, reads data and acts, often with a human approving critical steps. Agents go beyond chatbots because they take actions, not just answer questions.
• Azure AI Search · Related to · Product
  A search service that indexes content and supports vector and hybrid search, often used for RAG.
• Knowledge source · Related to · Concept
  Content an agent in Copilot Studio can ground its answers on, such as SharePoint sites, files, websites, Dataverse tables or connectors.

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