RAG is an AI architecture that combines the language capabilities of large language models (LLMs) with real-time retrieval from a knowledge source you control. Instead of relying solely on pre-trained knowledge, a RAG system retrieves relevant content from your documents, databases, or APIs at query time - and uses that content to generate accurate, grounded responses.
In simple terms: the AI looks something up before it answers.
That means fewer hallucinations, more relevant responses, and outputs that actually reflect your business context.
Your documents, data, or structured content
Vector or semantic search that finds relevant content
An LLM that reads retrieved content and composes a response