LangChain RAG Handbook: The 2025 Developer’s Guide to Scalable, Accurate AI Workflows
If your AI assistant gives vague answers, hallucinates, or slows to a crawl under load, the culprit is usually not the model—it’s the retrieval strategy behind it. Retrieval-Augmented Generation (RAG) turns raw documents into grounded, evidence-based answers, but making it work at production scale takes more than a few lines of code. This handbook-style guide…