Compare prompts like you mean it.

Write or load two prompts, run them side by side, and iterate on the weaker one without losing the thread.

1. Write, compare, review2. See variants3. Use the best version

Step 1

Write prompts, compare, and review

Load saved prompts, write new ones, run the comparison, and review the latest result without leaving this section.

Prompt A

Baseline or current version

Prompt B

Alternative to compare against

Recent Runs

This browser keeps your latest comparisons locally so you can quickly reuse a strong prompt later.

No local runs yet. Compare two prompts to start building private history in this browser.