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Mar 18, 2026 · Artificial Intelligence

CRAG Architecture Explained: Fixing Erroneous Retrieval Results Before the Generator

The article analyzes how most RAG pipelines blindly feed retrieved documents to LLMs, introduces CRAG's lightweight evaluator with confidence thresholds, describes its sentence‑level decomposition, filtering, and dual‑knowledge routing, and provides a full implementation walkthrough with a real insurance query example.