# Lambdatest > TestMu AI (Formerly LambdaTest) is a Full Stack Agentic AI Quality Engineering platform that empowers teams to test intelligently and ship faster. It is also a Vibe Testing platform for the Vibe coding era. Engineered for scale, it offers end-to-end AI agents to plan, author, execute, and analyze software quality autonomously. AI-native by design, the platform enables testing of web, mobile, and enterprise applications at any scale across real devices, real browsers, and custom real-world environments. It has over 18,000 enterprise customers and over 2.8 Million users spanning 132 countries. ## Pages - [Lambdatest Documentation](index.md): TestMu AI (Formerly LambdaTest) is a Full Stack Agentic AI Quality Engineering platform that empowers teams to test i...