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Long Context Windows Won't Kill RAG. Retrieval Was Never Just a Workaround for Small Windows.

This story is from 2026-10-21. It is preserved in the archive; the latest stories are on the live feed.

Every time a model ships with a bigger context window, someone posts "RAG is dead." Gemini's docs now describe context windows of 1 million tokens or more. So why bother chunking, embedding, and ranking when you can paste in everything? My take: long context changes how much you retrieve, not wheth…

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  1. 2026-10-21 03:58 · DEV Community — AI
    Long Context Windows Won't Kill RAG. Retrieval Was Never Just a Workaround for Small Windows.

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