Three steps to better prompts
From chaos to clarity in minutes.
Write & Version
Save your prompts with tags and projects. Every edit creates a new version with full diff history.
Run & Compare
Launch your prompt on multiple AI models side-by-side. Score each output from 1-10.
Analyze & Optimize
Your analytics dashboard reveals which prompt version works best, on which model, over time.
Everything you need to master your prompts
Prompt Library
Organize, tag, and version your prompts with full history. Never lose a good prompt again.
Diff between versions, tag by project, search instantly.
Multi-Model Compare
Run your prompt on Claude, GPT, and Mistral side-by-side in one click.
See which model gives the best output for each use case.
Score & Rate
Rate every output from 1-10. Build a dataset of what actually works.
Stop guessing. Start measuring prompt quality.
Analytics Dashboard
Track prompt performance over time. See trends, regressions, and best combos.
Know your best prompt x model combination at a glance.
Loved by prompt engineers
“I used to test prompts by copy-pasting between ChatGPT and Claude. PromptBench saves me hours every week.”
“The analytics dashboard finally gives me data on which prompts actually perform. Game changer for our team.”
“BYOK mode means I control my costs. The multi-model compare is something I didn't know I needed.”
Simple, transparent pricing
Start free. Upgrade when you need analytics and multi-model compare.