TestMu AI
Software testing cloud, formerly LambdaTest, with AI agents that plan, write and run tests for web, mobile and AI apps.
TestMu AI is a software testing cloud, formerly LambdaTest, that pairs AI agents with browser and real-device infrastructure. TestMu AI is used to plan, write and run tests for web and mobile apps, often from plain-language descriptions through its KaneAI agent, and to evaluate chatbots and voice agents before release.
Best for QA and engineering teams that want AI-written tests and large-scale browser and device execution on one platform, including teams that need to test their own AI agents.
- Platforms
- Web, API, MCP
- Pricing model
- Freemium
- Free plan
- Yes
- API
- Yes
- Made by
- TestMu AI (formerly LambdaTest)
- Added
Last verified: . Information taken from testmuai.com.
What is TestMu AI?
TestMu AI is a cloud platform for software testing that was known as LambdaTest until a rebrand on January 12, 2026. It covers the stages of quality engineering in one place: planning and managing test cases, authoring them, running them and analysing the results. Its KaneAI agent writes tests from plain-language descriptions or from material such as tickets, code diffs, documents and images, then converts them into automation for web and mobile. A separate agent testing product evaluates chatbots, voice assistants, IVR systems and phone or video agents for problems like hallucination, bias and toxicity. Execution runs on a browser cloud and a pool of real iOS and Android devices, with HyperExecute handling orchestration. The company says existing LambdaTest accounts, API keys and integrations carried over unchanged.
Key Features
KaneAI Test Authoring
Turns a description written in ordinary English into executable test steps and generates automation scripts from them.
Kane CLI
Starts the same agent flows from a terminal, a CI pipeline or a coding agent and syncs runs to the dashboard for replay.
Agent Testing
Sends AI evaluators against chat, voice, IVR, phone and video agents to check for hallucinations, bias, toxicity and compliance issues.
Real Device and Browser Cloud
Runs manual and automated tests on real iOS and Android hardware and across a large set of browser combinations.
HyperExecute Orchestration
Schedules test runs on Linux, Windows and macOS with fail-fast aborts, retries and AI root cause analysis.
Test Manager
Stores test cases and runs, links them to Jira or Azure DevOps issues, and generates cases from requirements in several formats.
Screenshots
Use Cases
- Regression Suites Without Scripting
- Describe user journeys in text and let the agent produce and maintain the automated checks.
- Cross-Browser Checks Before Release
- Run the same suite against many browser and operating system combinations in parallel.
- Native App Testing
- Exercise an iOS or Android build on real phones rather than only emulators.
- Validating a Support Bot
- Probe a chatbot or voice agent with adversarial scenarios before it goes live.
- Visual Regression Review
- Compare screenshots between builds with SmartUI to catch unintended layout changes.
Things to know
- Rebranded from LambdaTest
- The platform changed its name on January 12, 2026; the company states that products, accounts and integrations were not otherwise altered.
- Pricing is per product
- The pricing page has separate tabs for each product, including KaneAI, SmartUI, HyperExecute, Test Manager, automation and agent testing.
- KaneAI plans are metered in credits
- Each KaneAI tier includes a monthly credit allowance per agent, and an agent is the unit that authors one test case at a time.
FAQs
What is TestMu AI?
TestMu AI is a software testing cloud, previously called LambdaTest, that combines AI testing agents with browser, device and orchestration infrastructure for web, mobile and AI applications.
Is TestMu AI the same as LambdaTest?
Yes. TestMu AI is LambdaTest under a new name, adopted on January 12, 2026; the company says the product, the people behind it and its infrastructure did not change.
Do LambdaTest logins still work on TestMu AI?
Yes. According to TestMu AI, existing credentials, API keys, integrations and billing moved over automatically and no migration is needed.
How much does TestMu AI cost?
Other products on the platform are priced separately.
Is TestMu AI free?
Paid tiers add credits, cloud sessions and execution minutes.
What can TestMu AI's agent testing check?
TestMu AI's agent testing evaluates chat, voice, IVR, phone-calling, video and image-analysis agents for issues such as hallucination, bias, toxicity and compliance.
Does TestMu AI have an API?
Yes. TestMu AI lists API support and an MCP server, and says Selenium and Appium grid endpoints and CI integrations continue to work.
Can TestMu AI be deployed privately?
Yes. TestMu AI lists shared cloud, private cloud and on-premise deployment models.
Who it's for
- QA engineers
- Developers
- Engineering managers
- Enterprise quality teams
- Teams shipping AI agents
Read about it
Used in these workflows
- From app idea to the app stores: where AI tools help at each stageStage 6: Testing and code review
- Building an AI-powered app: the tool stack, layer by layerStage 8: Evaluation and monitoring
Each guide lists the stages of one job and the tools that help at each stage. All guides
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Alternatives to TestMu AI
| Tool | Free plan | Starting price | API |
|---|---|---|---|
 TestMu AI (formerly LambdaTest)AI-native software testing cloud with agents that plan, write and run tests across web, mobile and AI applications. |
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. 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