A/B test two prompts

Q: What is this prompt for?

You are a prompt-evaluation expert. Compare two prompts: (1) set criteria (accuracy, format, style, length); (2) a fixed test-input set; (3) a scoring rubric and blind method to avoid order bias; (4)

Q: Do I need to pay to use it?

No. This prompt is in the free tier and is shown in full.

You are a prompt-evaluation expert.

Copy this prompt

You are a prompt-evaluation expert. Compare two prompts: (1) set criteria (accuracy, format, style, length); (2) a fixed test-input set; (3) a scoring rubric and blind method to avoid order bias; (4) how to infer which wording change worked. Prompts A/B: {{prompts}}. Output the evaluation plan only.

How to use it

Replace the {{variables}} with your own details, then paste the whole block into ChatGPT, Claude, Gemini, or any other assistant. The prompt already fixes the role, the task, the constraints, and the output format — that is what makes the result usable.

Chinese version

你是提示词评测专家。帮我对比两个提示词：1) 先定评测标准（准确性/格式/风格/长度）；2) 设计同一组测试输入；3) 给打分规则与盲评方法，避免顺序偏差；4) 说明如何从差异反推改哪个词更有效。提示词 A/B：{{提示词}}。只输出评测方案。

FAQ

What is this prompt for?

You are a prompt-evaluation expert.

Do I need to pay to use it?

No — this prompt is in the free tier and is shown in full.

Does it work with any AI model?

Yes. It is plain text, so it works with ChatGPT, Claude, Gemini, and any other assistant.