TestMu AI (formerly LambdaTest)
Series DRaised $108M
Last updated October 2026
About TestMu AI (formerly LambdaTest)
TestMu AI, known as LambdaTest until its January 2026 rebrand, is an agentic AI quality engineering platform. It provides AI testing agents such as KaneAI and Kane CLI, a cross-browser testing cloud, a real device cloud, and the HyperExecute test orchestration platform, used by more than 18,000 enterprises and millions of developers and testers. Founded in 2017 and headquartered in San Francisco, USA and Noida, India, TestMu AI (formerly LambdaTest) has raised a total of $108M in funding and is currently at the Series D stage. Notable investors include Avataar Ventures, Qualcomm Ventures, Premji Invest, Sequoia Capital India (Peak XV Partners).
Total Funding
$108M
Founded
2017
TestMu AI (formerly LambdaTest) — Key Facts
| Company | TestMu AI (formerly LambdaTest) |
|---|---|
| Product | AI Agent Testing by TestMu AI |
| Founded | 2017 |
| Headquarters | San Francisco, USA and Noida, India |
| Funding status | Venture-backed |
| Total funding | $108M |
| Stage | Series D |
| Founders | Asad Khan, Jay Singh |
| Website | testmuai.com |
Founders
Asad Khan
Co-Founder & CEO
Jay Singh
Co-Founder
Funding Rounds
- Series D$38MDec 2024Avataar VenturesQualcomm Ventures
- Series C$45MMar 2022Premji InvestSequoia Capital IndiaTelstra VenturesBlume VenturesLeo Capital
- Series B$16MJun 2021Sequoia Capital India
- Series A$6MDec 2020Sequoia Capital India SurgeBlume VenturesEntree CapitalLeo Capital
Investors
Company Profiles
TestMu AI (formerly LambdaTest) — Frequently Asked Questions
Who owns AI Agent Testing by TestMu AI?
AI Agent Testing by TestMu AI is developed by TestMu AI (formerly LambdaTest), headquartered in San Francisco, USA and Noida, India.
Who founded TestMu AI (formerly LambdaTest)?
TestMu AI (formerly LambdaTest) was founded by Asad Khan and Jay Singh in 2017.
How much funding has TestMu AI (formerly LambdaTest) raised?
TestMu AI (formerly LambdaTest) has raised $108M and is at the Series D stage. Investors include Avataar Ventures, Qualcomm Ventures, Premji Invest, Sequoia Capital India (Peak XV Partners).
Where is TestMu AI (formerly LambdaTest) headquartered?
TestMu AI (formerly LambdaTest) is headquartered in San Francisco, USA and Noida, India.
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AI Agent Testing by TestMu AI Review
Read full review, pricing, and alternatives
Compared with instrumentation-first LLM evaluation tools such as LangSmith, Langfuse, and Braintrust, which score traces that an SDK-instrumented application produces, TestMu AI generates its own test traffic by chatting with and calling the agent as a simulated user, and needs no SDK. Compared with voice agent testing tools such as Coval, it adds chat, video, and image agent surfaces, business-outcome call metrics, red teaming, and a go-live verdict, while Coval offers calling regions beyond the US and EU and audio-native metrics. Pricing is credit-based per evaluation cycle rather than per seat or per trace.