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What Is RAG? Retrieval-Augmented Generation Explained

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

Originally published on DevToolHub . What is RAG, in one sentence? A way to make an LLM answer questions using documents it was never trained on, by searching those documents for relevant passages and handing the model the results as context before it generates a response. No retraining, no fine-tu…

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  1. 2026-09-15 10:49 · DEV Community — AI
    What Is RAG? Retrieval-Augmented Generation Explained

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