Retrieval-Augmented Generation (RAG)
Bilgi getirim destekli üretim (RAG)
D3 · Prompts, context, RAG, tools and agents
Retrieval-augmented generation is a generation approach that combines a model’s parametric knowledge with retrieved external information.
Review status: 2026-11-26
Technical explanation
A RAG application can retrieve documents or other resources at runtime and add selected material to the model context before it generates a response.
Conceptual boundaries
RAG is not retrieval alone, does not necessarily use vector search, and does not guarantee grounding, provenance, or factual correctness.
Provider-neutral example
A policy assistant finds the current leave policy before drafting an answer about vacation days.
Limitations
Retrieved material can be untrusted or wrong, and the original RAG study reports comparative results rather than a guarantee that every RAG answer is factual.
Related concepts
Atomic claims and evidence
1.1Lewis et al., Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks
- Source
- Lewis et al., Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks
- Source role
- Authoritative source
- Exact locator
- Abstract; Section 1: parametric/non-parametric memory and dense Wikipedia index
- Supported claim
- The original RAG paper defines RAG models as combining pre-trained parametric and non-parametric memory for language generation, with a neural retriever accessing an external index in its proposed formulation.
- Last verification
- Review due
- Scope limitation
- The neural-retriever and dense-index details describe the paper’s formulation and do not prescribe every later RAG implementation.
2.1NIST AI 100-2e2025, Adversarial Machine Learning: A Taxonomy and Terminology of Attacks and Mitigations
- Source
- NIST AI 100-2e2025, Adversarial Machine Learning: A Taxonomy and Terminology of Attacks and Mitigations
- Source role
- Authoritative source
- Exact locator
- Section 3.1.1 printed p. 39; Figure 6 printed p. 39
- Supported claim
- NIST describes RAG application context as query-dependent runtime material from external sources and recommends reviewing source and citation claims in GAI outputs.
- Last verification
- Review due
- Scope limitation
- This is risk-management guidance and does not assert that every RAG system uses the same pipeline or produces incorrect output.
2.2NIST AI 600-1, Artificial Intelligence Risk Management Framework: Generative Artificial Intelligence Profile — D3 evidence slice
- Source
- NIST AI 600-1, Artificial Intelligence Risk Management Framework: Generative Artificial Intelligence Profile — D3 evidence slice
- Source role
- Authoritative source
- Exact locator
- MEASURE 2.5, MS-2.5-003 printed p. 32: review and verify sources and citations in GAI outputs
- Supported claim
- NIST describes RAG application context as query-dependent runtime material from external sources and recommends reviewing source and citation claims in GAI outputs.
- Last verification
- Review due
- Scope limitation
- This is risk-management guidance and does not assert that every RAG system uses the same pipeline or produces incorrect output.