Version, test, and ship
prompts with confidence
PromptLab gives your team full control over AI prompts in production. Test changes safely, roll back instantly, and measure what works — all without touching code.
Dev AI Labs
Pro plan
Variant B promoted to 25% traffic
2m ago
Quality threshold reached: 94.2 (target: 90)
15m ago
Experiment started with 15% traffic
1h ago
New version created by Sarah
3h ago
Rolled back v3.1 — error rate spike
1d ago
Everything you need to manage AI prompts safely
The tools your team needs to update, test, and improve prompts with confidence.
Gradual Rollouts
Route a small percentage of users to a new prompt first. Scale up only when you see it working.
A/B Testing
Run controlled experiments with real users. See which prompt version performs better with actual data.
Instant Rollback
Something went wrong? Revert to the previous prompt in seconds. No waiting, no downtime.
Real-time Analytics
Track quality scores, response times, costs, and error rates. Know the impact of every change instantly.
Side-by-Side Comparison
Compare prompt versions visually. See exactly what changed and how it affected results before going live.
Version History
Every prompt change is saved automatically. Browse your full history and restore any previous version.
Four steps to safer prompt updates
A simple workflow that removes the risk from changing AI prompts.
Create a new version
Write or update your prompt in the editor. PromptLab saves every change automatically so you can always go back.
You are a helpful checkout assistant. Guide the user through their purchase. Be concise and friendly. Always suggest related products when the cart value is under $50.
Test with a small audience
Route just 5% or 10% of your users to the new version. See how it performs before rolling it out to everyone.
Compare the results
See side-by-side how the new prompt performs vs. the old one — quality, speed, cost, and accuracy.
Roll out or roll back
If the new version wins, push it to all users. If not, revert instantly — no damage done.
New version promoted
Now serving 100% of traffic
Previous version saved as rollback point
Teams ship faster and safer with PromptLab
Real impact from teams already using PromptLab in production.
Live Dashboard
checkout-assistant · last 24 hours
Trusted by teams building with AI
“We used to dread updating our AI prompts. One bad change could ruin the experience for thousands of users. PromptLab lets us test changes safely and roll back in seconds if needed.”
“We manage over 200 prompts across our products. PromptLab gave us one place to manage them all, with version history and the ability to A/B test every change.”
“The impact was immediate. Our prompt-related incidents dropped by 70%, and our team updates prompts 4x more frequently because they're no longer afraid to make changes.”
Ready to take control of your AI prompts?
Join the teams already using PromptLab to ship faster, reduce costs, and improve quality.
Join Waitlist