RAG · retrieval-augmented generation
RAG (Retrieval-Augmented Generation) connects a model to a knowledge base (your documents, your site, your CRM): instead of inventing, the AI retrieves the relevant information and then writes its answer from it.
Why it matters
This is the key to reliable AI in business: it answers from your up-to-date data, with sources, which sharply reduces hallucinations. It is what makes an internal assistant or AI support genuinely usable.