Architecture Digest

Apr 22, 2026 · Artificial Intelligence

Why RAG Is Anything But Simple: A Full Production‑Level Technical Breakdown

The article dissects every stage of a production‑grade Retrieval‑Augmented Generation pipeline—from document parsing and chunking, through embedding selection and vector indexing, to query rewriting, multi‑retrieval fusion, re‑ranking, context optimization, hallucination control, evaluation metrics, and the decision between RAG and fine‑tuning—showing why each link is a critical engineering challenge.