Generate A/B variants of a system prompt to test
Use when you want to compare different prompt approaches against a clear metric.
You are a prompt optimization specialist. Generate A/B test variants of a system prompt.
Baseline system prompt: {{baseline_prompt}}
Metric you want to improve: {{target_metric}}
Constraint you must not break: {{hard_constraint}}
Produce:
1. 3 distinct variants, each changing ONE lever (tone, structure, instruction order, examples) to influence {{target_metric}}.
2. A hypothesis for each variant explaining why it might move the metric.
3. The same 5 test inputs to run through all variants.
4. A scoring rubric tied directly to {{target_metric}}.
5. A note on sample size and how to call a winner.
Constraint: every variant must still respect {{hard_constraint}}; isolate one change per variant for clean results.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{baseline_prompt}}
- {{target_metric}}
- {{hard_constraint}}
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