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TestSprite open-sourced the TestSprite CLI (Apache-2.0) on 2026-06-12, providing…

Brief

TestSprite open-sourced the TestSprite CLI (Apache-2.0) on 2026-06-12, providing an agent-invoked tool that runs user-like end-to-end tests, repairs failures, and rechecks successes. The engine is already used by 100,000+ teams, and a public leaderboard claims the top app hit 89% correctness using the cheapest model at about half the cost of the most expensive model.

Source evidence

Your coding agent can run all night. It still can't tell if what it built actually works.

Today we're open-sourcing the TestSprite CLl
(Apache-2.0)

A tool your agent calls on its own to test your app end-to-end like a real user, fix what broke, and re-check everything it ever got right. It's the same engine 100,000+ teams already use.

github.com/TestSprite/testsp…

We proved it in public, on a public leaderboard:

Most correct app on the board:89% Built by the cheapest model in the field At half the cost of the priciest one
You no longer need the biggest, most expensive model to ship software you can trust.
Setup is 2 commands:

npm install -g @testsprite/testsprite-cli
testsprite init

That's the last command you'll ever type - from there, your agent runs the tests itself.

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