AI Chatbot Terms > 1 min read

Retrieval-Based Models Explained: How RAG & Vector Search Work

Understand retrieval-based AI models, how they differ from generative models, and why they power modern chatbots with accurate, fact-based responses.

More about Retrieval-based Models

Retrieval-based Models are AI systems designed to fetch and present the most relevant information from a predefined dataset or knowledge base. These models often utilize sparse retrieval methods for term-based matching or dense retrieval to capture semantic relationships.

Retrieval-based models are widely used in semantic search, question answering, and recommendation systems, where accuracy and relevance are crucial.

Frequently asked questions

They provide highly accurate and fact-based responses by retrieving pre-existing information from reliable sources, such as vector databases.

Retrieval-based models fetch existing data, while generative models create new text using approaches like RAG.

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