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LLM Evaluation in Python Without Paying for SaaS: RAGAS, DeepEval, and Custom Metrics

Your RAG pipeline is returning answers. The question is: are they good answers? Most developers skip evaluation entirely until something breaks in production. Then they're scrambling to figure out what broke and why — because they never measured anything. This guide covers the practical Python eval…

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  1. 2026-11-10 14:00 · DEV Community — AI
    LLM Evaluation in Python Without Paying for SaaS: RAGAS, DeepEval, and Custom Metrics

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