NIST AI RMF
    ISO 42001 Aligned
    Ethics Reviewed
    Research Validated
    Definition
    6 min read

    What Is RAG (Retrieval Augmented Generation)?

    RAG combines AI language models with authoritative knowledge retrieval to produce accurate, grounded outputs.

    RAG
    Technical
    Definition

    Cassandra Research — AI Division

    NIST AI RMF Compliant
    ISO/IEC 42001 Aligned
    IEEE Standards Referenced

    Research methodology: Validated against peer-reviewed AI research, NIST frameworks, and industry benchmarks.

    Last reviewed: 7 March 2026

    Plain-English Explanation

    Retrieval Augmented Generation (RAG) is a technique that makes AI smarter by giving it access to specific, authoritative information before it generates a response. Instead of relying only on what the AI learned during training, RAG first searches a curated knowledge base for relevant documents, then uses those documents as context to generate accurate, well-sourced answers.

    How RAG Works

    1

    Query Processing

    The user's question is converted into a mathematical representation (embedding) that captures its meaning.

    2

    Retrieval

    The system searches a vector database of authoritative documents to find the most relevant information.

    3

    Augmentation

    Retrieved documents are provided to the language model as context alongside the original question.

    4

    Generation

    The language model generates a response grounded in the retrieved documents, with citations.

    Why It Matters

    RAG dramatically reduces AI hallucinations by grounding responses in verified source material. This is critical for professional applications in law, tax, and medicine where accuracy is non-negotiable. Cassandra Research's AI engines use RAG architecture to ensure every response is backed by authoritative sources.

    Frequently Asked Questions

    Does RAG eliminate AI hallucinations?

    RAG significantly reduces hallucinations by grounding AI responses in authoritative sources, but it does not eliminate them entirely. Quality of the knowledge base and retrieval system are critical factors.

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