Retrieval-Augmented Generation (RAG) System RAG combines retrieval and generation to create more accurate AI responses. The process works in three steps: 1. Document Ingestion: Documents are split into chunks and converted to vector embeddings 2. Retrieval: When a query comes in, relevant chunks are found using similarity search 3. Generation: The LLM uses retrieved context to generate accurate, grounded answers Benefits of RAG: - Reduces hallucinations by grounding responses in actual documents - Enables knowledge updates without retraining models - Provides source citations for transparency - Works with private, domain-specific data RAG is ideal for enterprise knowledge bases, customer support, and research applications.