The LLM RAG Obituary: Killed by Agents, Buried by Context Windows

Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by CuriouslyC on Wednesday October 01, 2025 @08:43PM (#45445285)

RAG isn't dead, RAG is just fiddly, you need to tune retrieval to the task. Also, grep is a form of RAG, it just doesn't use embeddings.

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by nbstme on Wednesday October 01, 2025 @08:53PM (#45445329)

Yes my point is that the entire RAG pipeline like ingest, chunk, embed, search with Elastic, rerank is in decline. Grep is far simpler. It’s trivial.

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by tw1984 on Thursday October 02, 2025 @08:11AM (#45448626)

No, grep is not RAG. RAG is all about embeddings + vector search + LLM working under a fixed workflow.

Saying grep is also RAG is like saying ext4 + grep is a database.

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by CuriouslyC on Thursday October 02, 2025 @11:47AM (#45451289)

So you're saying grep isn't a form of information retrieval?

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by tw1984 on Thursday October 02, 2025 @07:34PM (#45456850)

information retrieval is a much larger superset of RAG.

grep + agentic LLM is not RAG.

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by leobg on Friday October 03, 2025 @01:49PM (#45465639)

Retrieval Augmented Generation. How you do the retrieving is irrelevant. You can do it manually and it’ll still be RAG. Also, most RAG pipelines combine multiple approaches - BM25, embeddings, etc..

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Re:The LLM RAG Obituary: Killed by Agents, Buried by Context... by rpcorb on Saturday October 04, 2025 @11:07AM (#45473839)

You don't decide what "RAG" means, a term that's been around for much, much less time than "database".

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