Evaluation and Benchmarking

Measure prompt effectiveness with systematic testing and comparison frameworks.

Category: Engineering | Type: Skills

Skills: Evaluation, Benchmarking, A/B Testing

Techniques: Structured Output, Self-Verification

Prompt

You cannot improve what you cannot measure. Framework: 1. Define Success Criteria — before writing the prompt, write the rubric. What does a 10/10 response look like? 2. Test Set — create 20+ diverse test inputs for [your use case] covering normal, edge, and adversarial cases. 3. Blind Evaluation — score outputs without knowing which prompt version generated them. 4. A/B Testing — change one variable at a time between prompt versions. 5. Metrics — accuracy (factual correctness), relevance (answers the question), format compliance, latency, and cost. 6. Regression Testing — when you improve for one case, verify you haven't broken others. 7. Human-in-the-Loop — automated metrics catch format issues; humans catch quality issues. Build your eval suite before optimizing your prompt.

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