Replace vibes with
evals in minutes.

Coherence lets you generate realistic test cases to rigorously test your prompts before they hit production.

Watch Zach go from idea to evals in just 4 minutes.

Fill out your test cases today, not next month.

With Coherence, you can craft a holistic test set of thoughtfully designed test cases in minutes.

Detailed control.

Rather than sift through production traces or wait on SME's, Coherence let's you define the characteristics of your dataset with detail.

Quality you can trust.

Through advanced techniques like Model Ensembles and Mixture of Agents, Coherence delivers a powerful degree of accuracy and realism.

Test and improve your prompt right away.

Iterate quickly with your synthetic test cases to get a prompt that has thought of everything.

Can't I do this myself with ChatGPT?
You've already tried and it's junk.

Can I really trust it?
You'll have to see for yourself.

See it for yourself.

Get started