TestMu AI (formerly LambdaTest)
AI-native software testing cloud with agents that plan, write and run tests across web, mobile and AI applications.
TestMu AI, formerly LambdaTest, is a cloud platform for software testing built around AI agents. Its KaneAI agent writes tests from plain-English prompts, and TestMu AI runs them on cloud browsers and real mobile devices. The platform also tests chat and voice agents, manages test cases and analyses failures. A free plan exists for test management.
Best for QA and engineering teams that want AI-assisted test creation together with a cloud of browsers and real devices to run the tests on.
- Platforms
- Web, API, MCP
- Pricing model
- Subscription
- Free plan
- Yes
- API
- Yes
- Made by
- TestMu AI
- Added
Last verified: . Information taken from testmuai.com.
What is TestMu AI?
TestMu AI, known as LambdaTest until a rebrand on January 12, 2026, is a cloud platform for software testing that has grown from cross-browser testing into a suite of AI testing agents and execution infrastructure. KaneAI, its test-authoring agent, turns plain-English descriptions, tickets, documents or images into test plans, cases and automation scripts, and Kane CLI runs the same flows from a terminal or CI pipeline. A separate agent-testing product evaluates conversational systems, including chatbots, IVR lines, voice assistants and phone or video agents, for problems such as hallucination, bias and toxicity. Tests execute on HyperExecute, an orchestration cloud, on a browser grid with more than 3,000 combinations and on a real device cloud of over 10,000 iOS and Android devices. Test Manager handles case management with Jira links, SmartUI covers visual regression, and analytics classify failures and flag flaky tests. Deployment is offered on shared cloud, private cloud or on-premise.
Key Features
KaneAI test authoring
Converts a natural-language description, ticket, diff or document into test cases and runnable automation for web and mobile.
Kane CLI and MCP server
Triggers the same authoring flows from a terminal, CI job or coding agent and syncs the runs back to the dashboard.
Agent testing
Uses AI evaluators to probe chat, voice, IVR, phone and video agents for hallucination, bias, toxicity and compliance issues.
HyperExecute orchestration
Distributes test runs across cloud machines with intelligent retries, fail-fast aborts and AI root cause analysis.
Real device and browser cloud
Provides real iOS and Android devices, simulators, emulators and desktop browsers for manual and automated testing.
Test management and insights
Stores and generates test cases, links them to Jira issues and reports on flaky tests and error categories.
Screenshots
Use Cases
- Cross-browser regression
- Run an existing Selenium, Cypress or Playwright suite across many browser and OS combinations.
- Native app testing
- Execute Appium, Espresso or XCUITest scripts on real phones without maintaining a device lab.
- Validating an AI agent before launch
- Stress a support chatbot or voice agent with automated evaluators to find unsafe or incorrect answers.
- Writing tests from requirements
- Feed a ticket or specification to KaneAI and receive structured test cases.
- Catching visual bugs
- Compare screenshots between builds with SmartUI to spot layout changes.
Things to know
- LambdaTest is the former name
- The company rebranded on January 12, 2026; accounts, API endpoints and integrations moved over automatically.
- Each product is priced on its own
- KaneAI, Test Manager, HyperExecute, Live Testing, Automation and SmartUI have separate plans on the pricing page.
- KaneAI plans are per agent
- An agent authors one test case at a time, and each plan includes a monthly credit allowance per agent.
- Several deployment models
- The platform can run on shared cloud, private cloud or on-premise infrastructure.
FAQs
What is TestMu AI?
TestMu AI is the new name of LambdaTest: a cloud platform that uses AI agents to automate software testing for websites, mobile apps and AI systems.
Is LambdaTest still available?
Yes. LambdaTest was renamed TestMu AI on January 12, 2026, and the site says all products, integrations and infrastructure continue under the new name at testmuai.com.
What is TestMu AI used for?
TestMu AI is used to create tests with AI agents, run them on cloud browsers and real devices, manage test cases and analyse failures.
Is TestMu AI free?
TestMu AI lists a Free plan described as free forever for test management, and sign-up is free. Other products are paid.
How much does TestMu AI cost?
TestMu AI (formerly LambdaTest): a free plan is available. Paid plan rates are published on testmuai.com. Check the official pricing page for current amounts.
Do LambdaTest logins still work on TestMu AI?
Yes. TestMu AI states that existing LambdaTest credentials, API keys, integrations and CI workflows carried over without changes.
Does TestMu AI have an API?
Yes. TestMu AI offers an API, an MCP server and more than 120 integrations, including Jenkins, GitHub Actions, Slack and Jira.
Which test frameworks does TestMu AI support?
TestMu AI lists Selenium, Cypress, Playwright, Puppeteer and Taiko for browsers, and Appium, Espresso and XCUITest for mobile apps.
Who it's for
- QA engineers
- Developers
- SDETs
- Engineering managers
- Enterprises
Comments
No comments yet. If you have used TestMu AI (formerly LambdaTest), tell other readers how it went.
Alternatives to TestMu AI (formerly LambdaTest)
| Tool | Free plan | Starting price | API |
|---|---|---|---|
 TestMu AISoftware testing cloud, formerly LambdaTest, with AI agents that plan, write and run tests for web, mobile and AI apps. |
Yes | — | Yes |
 BrowserStackCloud testing platform for websites and mobile apps on real browsers and devices, with AI agents across the test cycle. |
— | — | — |
 TestsigmaAgentic test automation platform whose AI agents generate, run and self-heal tests for web, mobile, API and Salesforce apps. |
— | — | — |
 ApplitoolsAI-augmented testing platform that validates how web and mobile interfaces look and behave using Visual AI. |
— | — | — |
 GreptileAI code review agent that indexes a repository and comments on pull requests with whole-codebase context. |
Yes | — | — |
Listed in the same categories as TestMu AI (formerly LambdaTest). A starting price appears only where we checked it on the maker’s pricing page; a dash means not checked or not published. All AI Code Assistant tools