RAG isn't dead: it's still the cost-efficient answer for millions of documents

ashishllm · x · 2026-10-18

Responding to the claim that agents with search tools make RAG pipelines obsolete, ashishllm argues RAG remains essential at scale: for domains like law or healthcare with millions of compliance documents, feeding everything to an agent repeatedly is prohibitively expensive. Storing docs in a DB and retrieving relevant ones via cosine similarity is exactly what saves cost and time — that's the point of RAG.

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RAG isn't dead: it's still the cost-efficient answer for millions of documents

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