Your team defines expectations, Rhesis generates and executes thousands of test scenarios. So that you know what you ship.

Open-source Gen AI testing platform. Collaborative test management that turns expertise into comprehensive automated testing. Check out our main repository and documentation to get started.

Make testing a peer to development

You've added Gen AI to deliver value—now give testing the same attention. Built by developers who lived through inadequate testing tools, we're bringing the same sophistication to testing that you bring to development.

Your whole team should define what matters

Why should only engineers decide what to test? Your legal team knows compliance risks. Marketing understands brand voice. Domain experts spot edge cases. Rhesis makes testing everyone's responsibility—no code required.

Know what you're shipping

Generate thousands of test scenarios from your team's collective expertise. Execute them automatically. Get clear visibility into exactly how your AI performs. Ship with understanding, not hope.

Open source, built for community

Core platform and SDK: MIT-licensed forever. Enterprise features: clearly separated in ee/ folders under commercial licenses. No bait and switch—we're building testing tools the Gen AI community actually needs.

Made with in Potsdam, Germany

Visit rhesis.ai to learn more.