Rewrite a prompt, compare variants, and score them on real cases. Ship the one that wins.
How it works
Paste a prompt. Say which model it is for and what the task is.
Improve it. One rewrite, three variants, or rounds you steer.
Test and adopt. Score against your cases and keep the winner.
Examples
Real inputs, and what comes back from each of them.
- You ask
summarize these tickets and flag the urgent ones
You getA rewrite with a role, a definition of urgent, and a JSON format.
- You have
Three variants, run against twenty real tickets
You getA leaderboard, and exactly where each one went wrong.
Use cases
- Improve any prompt
- A rewrite with every change explained.
- Compare and score
- Run variants on your own cases and rank them.
- Refine image prompts
- Each round is scored against your brief or reference images.
At a glance
- Works with
- Claude, GPT, Gemini, or any model
- Tests with
- Your cases, checks and a rubric
- Image loop
- Up to 12 rounds, 4 references
- Share for a session
- A one-time guest link for somebody outside the workspace