Prompt Comparison
Two versions of the same prompt and not sure which is better? Paste both and get a score for each, which one is structurally stronger, and the criteria used.
compare prompts
prompt A/B test
prompt comparison
test prompts
🔒 Runs inside your browser — no sign-up and your data is never sent to any service.
How to use
- Paste the first version into Prompt A.
- Paste the second version into Prompt B.
- Click “Generate” to see both scores and the verdict.
Why use this tool?
Comparison is useful after improving a prompt, to confirm the new version is structurally better. Then try both in your model — the real answer quality is the final judge.
Frequently asked questions
Does it run both prompts in an AI model?
No, it compares text structure in your browser. Try both in your model for a real test.
What are the criteria?
Role, context, output format, constraints and bullet structure.
Are my prompts saved?
No — unless you click Save on the result, and then only in your browser.