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What makes an LLM product actually useful?

I've been seeing a lot of LLM products lately, and it feels like the model itself is becoming less of the differentiator. I'm curious what people here think. When building an LLM product, what usually matters more in practice: the model, RAG, good product design, evaluation, or the data behind it?…

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  1. 2026-09-19 15:52 · r/deeplearning
    What makes an LLM product actually useful?

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