Stably AI Launches AI Agent to Automate and Self-Heal Playwright Tests, Transforming Software QA

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Stably AI, a cutting-edge software testing startup, today announced the launch of its groundbreaking AI-powered testing agent that automatically writes, runs, and self-heals Playwright tests in minutes. Designed to eliminate the pain points of brittle test suites and slow feedback loops, Stably empowers engineering, product, and QA teams to ship bug-free code faster than ever before.

Stably’s AI agent learns your product by analyzing documentation, codebases, and user session recordings, enabling it to generate new tests for every pull request (PR) and automatically repair tests when UI changes occur. This innovative approach delivers 99.7% test assertion accuracy and near-zero manual maintenance, freeing teams from the costly cycle of flaky tests and tedious upkeep.

Key Benefits and Features:

• 10x Faster Testing: Stably intelligently selects and runs only the tests impacted by code changes, slashing test suite runtimes and accelerating release cycles.
• Automated Test Creation: Tests that traditionally took hours to hand-code in Playwright or Cypress are now generated automatically in under 10 minutes.
• Self-Healing Tests: When UI elements shift, Stably’s AI repairs locators and updates flows without human intervention.
• No-Code Test Authoring: Product managers and QA professionals can create and maintain tests using plain English descriptions or point-and-click interfaces—no coding required.
• Seamless Integration: Works effortlessly with GitHub, GitLab, CI/CD pipelines, and popular developer tools.
• Context-Aware Testing: Understands your app’s domain and business logic to catch real bugs, not just UI glitches.

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Proven Impact

Early adopters have already seen transformative results:

• OpenArt AI scaled from zero to $16 million ARR with a lean team of just 10 engineers using Stably’s AI-driven testing.
• Tofu AI reclaimed over 40 engineering hours weekly by migrating from manual Playwright tests to Stably.
• Multiple customers have cut QA costs by 80%, replacing expensive manual testing contracts with Stably’s automated solution.
• Teams report months of zero test flakiness, dramatically improving release confidence and velocity.

Leadership with Deep Expertise

Stably is led by CEO Jinjing Liang, who built Google Chrome’s release infrastructure serving over 3 billion users, and CTO Neil Parker, former Tech Lead on Uber’s Safety team. Supported by a team of AI PhDs and serial entrepreneurs, Stably is on a mission to make AI the favorite QA engineer on every development team.

Launch Week Special Offer

To celebrate the launch, Stably is offering the first month free on its starter plan for teams struggling with slow PR test runs, manual test maintenance, or wanting to empower non-engineers to contribute to testing. Interested teams can sign up or schedule a demo at stably.ai and mention “YC Launch” to redeem the offer.

About Stably AI
Stably AI is a next-generation software testing platform that leverages artificial intelligence to automate test creation, execution, and maintenance. By combining deep product understanding with advanced AI techniques, Stably enables teams to ship reliable software faster, reduce costs, and eliminate flaky tests. Learn more at www.stably.ai