Interactive Learning Lab

RAG Evaluation Lab

Learn to measure what matters — systematically evaluate every RAG response with real metrics, not gut feel.

FaithfulnessAnswer RelevancyContext PrecisionContext Recall
Follow the labs in order for the full story
01
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The Problem
Why Gut Feel Fails
Compare pairs of answers — pick which one is better. Then see the scores. The confident-sounding one is often wrong.
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02
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Answer Quality
Faithfulness
See each sentence in an answer highlighted green (grounded) or red (hallucinated). Watch faithfulness scoring live.
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03
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Answer Quality
Answer Relevancy
An answer can be faithful but miss the point. Watch reverse-question generation and cosine similarity scoring.
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04
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Retrieval Quality
Context Precision & Recall
Did retrieval fetch the right chunks? Precision shows noise vs signal. Recall shows what was missed entirely.
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05
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The Payoff
The Full RAGAS Scorecard
All 4 metrics together. Run live evaluation, batch-test a golden dataset, and understand offline vs online eval.
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The Story Arc
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Lab 1
Gut feel fails
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Lab 2
Faithfulness
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Lab 3
Answer Relevancy
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Lab 4
Context Quality
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Lab 5
Full Scorecard