Is TestMu AI a replacement for Greptile?

No. Greptile is a code reviewer with a genuine execution layer, used by 22,000+ teams. TestMu AI does not review code. The two sit at different points: Greptile tests the branch before merge in a sandbox, Kane CLI tests the deployment after build in a real browser.

Does Greptile really run browsers?

Yes, and it would be wrong to claim otherwise. Its T-Rex agent writes targeted tests for the PR including edge cases, and its documentation describes spinning up the tools it needs: services, dev servers, mocks, API calls and browser agents. That is real execution, and more than most code review tools attempt.

So what is the actual difference?

The target. All documented Greptile execution happens inside an ephemeral sandbox built from the PR branch. Nothing in its documentation points at a deployed environment. Kane CLI takes a URL, so it tests your staging, preview or production deployment as it actually exists, including the environment configuration around it.

Why does that distinction matter?

Because a large share of production incidents are environmental rather than logical. A missing environment variable, a CDN rule, an SPA route that 404s on refresh, or an asset chunk that fails after a redeploy will all pass in a sandbox built from source and fail for a user. Those faults only exist in the deployment.

Yes, and it is a clean split. Greptile reviews and sandbox-tests the pull request, Kane CLI verifies the deployed result and keeps verifying it on a schedule after merge. Neither duplicates the other.

How does pricing compare?

Greptile publishes a free Starter plan, Pro at $30 per seat per month, a 50% startup discount taking Pro to roughly $15 per seat, a free open-source program, and custom Enterprise, verified on 27 August 2026. It bills per seat. TestMu AI is free to start and usage-based with no per-seat charge; see pricing.

Does it work with AI coding agents?

Yes. Kane CLI runs inside an agent loop in agent mode with NDJSON output, so a coding agent gets a verdict from the rendered screen instead of judging its own work from code that compiles.

Where does Greptile win?

On PR-time depth. Its repository graph of functions, classes and imports gives review context a diff-only tool cannot match, and T-Rex genuinely executing targeted tests puts it ahead of most reviewers. Self-hosting is unusually thorough, with Docker Compose for up to 100 developers and Kubernetes above that. It is SOC 2 Type II compliant and free for open source. For catching defects before merge, Greptile is the stronger tool.

What else should I compare?

Greptile is one of several reviewers with execution ambitions, so it is worth seeing the field. We keep like-for-like write-ups of CodeRabbit, VibeQA, Qodo, and Kane CLI, each scored on the same dimensions and dated.

The Best Greptile Alternative for Deployed Apps

Greptile is further into execution than most code reviewers. Its T-Rex agent spins up services and browser agents in a sandbox built from the PR branch. What it cannot do is test the environment you actually deployed.

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A Sandbox, or Your Real Environment

Scored against Greptile's public docs on 27 August 2026. Greptile executes in a sandbox; TestMu AI targets the deployment.

Top Choice

Features

Greptile

Primary job

Verify the deployed app in real Chrome

Review PRs and test the branch in a sandbox

What it analyses

The running deployment you point it at

PR diff plus a graph index of the repo

Executes the application

Yes, in a real Chrome session

Yes, in a sandbox built from the PR branch

Browser execution

Real Chrome via the DevTools Protocol

Browser agents inside the sandbox, via T-Rex

Targets a deployed environment

Staging, preview or production by URL

Not offered, sandbox only

Tests the environment config

Catches env vars, CDN and routing faults

Not offered, the sandbox is synthetic

Test generation

End-to-end journeys from plain English

Targeted tests for the PR and edge cases

AI code review

Not offered, this is a runtime layer

Full-context review, the core strength

Repository indexing

Not required

Graph of functions, classes and imports

Evidence captured

DOM, URL, network, screenshots, console

Test results from the sandbox run

Runs on a schedule

Yes, cron with timezone support

Runs on pull request events

Post-deploy verification

Yes, that is the point

Not offered

Mobile and cross-browser

10,000+ real devices and browsers

Not offered

Self-hosting

Managed cloud

Docker Compose or Kubernetes on Enterprise

Compliance certifications

SOC 2 Type II, HIPAA, GDPR

SOC 2 Type II

Free tier

Free to install and start

Starter plan is free

Entry paid pricing

Usage-based, see pricing

Pro $30 per seat per month

Open-source projects

Free to install

Free open-source program

Two Layers of Quality On One Pull Request

Static analysis and runtime verification catch different failures. The gap between them is where shipped bugs live.

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YOUR REAL ENVIRONMENT

Test What You Shipped

A sandbox proves the branch builds. Kane CLI points at your staging or production URL and proves it works there.

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Point it at any deployed URL
Real Chrome via the DevTools Protocol
Evidence-backed pass or fail per run

THE BLIND SPOT

What a Sandbox Misses

Missing env vars, CDN routing and SPA refresh 404s only exist in the real deployment.

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Catches config and routing faults
Screenshots, console logs, network traces
Assertions on visible DOM text

AFTER DEPLOY

Keep Verifying After Merge

PR-time testing stops at the merge. Scheduled runs keep checking the live app after it ships.

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Cron scheduling with timezone support
Posts pass or fail back to the pull request
Runs headless in any CI pipeline

Pricing, Side by Side

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Greptile's published pricing, verified on 27 August 2026. It bills per seat; TestMu AI does not.

TestMu AI

Greptile

Free tier

Free to install and start

Starter, free

Entry paid tier

Usage-based, see pricing

Pro $30 per seat per month

Startup discount

Not published

50% off Pro, about $15 per seat

Open-source projects

Free to install

Free program

Per-seat charge

None

Yes, per seat

Self-hosting

Not offered

Docker Compose or Kubernetes on Enterprise

Deployed-app testing

Included on every tier

Not available at any tier

Top tier

Custom Enterprise

Enterprise, custom pricing

Planning

Test Manager

Intelligent AI for test management

1-Click Migration from Other Platforms

Link Jira Issues with Test Manager

Authoring

Kane AI

GenAI-Native Test Agent for Test Planning & authoring

Kane CLI

Browser automation validation for developers, QA & AI coding Agents

MCP Server

Connect AI to test data, no manual transfers

Agent Testing

A multi-agentic platform to test AI agents

Execute

HyperExecute

Blazing fast AI-Native automation testing cloud

Cross Browser Testing

Accessibility Testing

Analysis

AI-Native test intelligence insights

AI-powered error classification

Smart auto-healing

Smart flakiness detection

120+ Integrations

and more

Flexible Deployment Models on:

Shared CloudPrivate CloudOn-Premise

Built for Every Layer of Quality

Project & Environment Management

Create projects, manage environments, and scope variables, with bulk creation when you migrate a large suite.

Auth Profiles & Test Data

Reusable auth profiles and test data let Kane CLI walk signed-in journeys without re-authenticating each run.

Validation Criteria

Define custom, evidence-based pass and fail rules per objective, with confidence tracking on every result.

Security & Infrastructure

Run on HyperExecute with optional secure tunnels for firewall-restricted and internal environments.

Scheduling Engine

Automate runs with preset frequencies or full custom cron expressions and IANA timezone support.

Observability & Reporting

Monitor every run with unified dashboards, exportable reports, and real-time pass and fail trends.

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Seamless Collaboration
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120+ more

Success Stories of TestMu AI (Formerly LambdaTest)

50%

reduction in test execution time

“HyperExecute is a highly reliable test execution platform and has excellent customer support.”

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Sr. Engineering Manager

More Reasons to LoveTestMu AI (formerly LambdaTest)

See how TestMu AI speeds up your testing with AI-native authoring, faster execution, and deeper test insights across web, mobile, and AI applications.

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TestMu AI Named a Challenger in the 2025 Gartner® Magic Quadrant™

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TestMu AI recognized in The Forrester Wave™: Autonomous Testing Platforms, Q4 2025

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Wall of Fame

TestMu AI is #1 choice for SMBs and Enterprises across the globe.

Enterprise-Grade Security

We safeguard your data and AI systems with global security, privacy, responsible AI, and ESG standards.

Security compliance certification badges

Integrations

Works where you work, 120+ integrations with the tools your team relies on.

Users

3M+

Tests

1.5B+

Enterprises

18K+

Countries

132

As Seen On

Some Love from our Customers

As Best Egg expanded its product offerings and entered new markets, we knew our old testing infrastructure couldn’t keep up.
With support from Tenny Agustin, our Engineering Operations Lead, we modernized our approach with

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Excited to Share My Learning Journey with Kane AI & Lambda Tool!
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See how is #Futureready to enable blazing-fast test orchestration seamlessly integrated with organizations' existing CI/CD platforms, using #Microsoft Azure.

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Frequently asked questions

TestMu AI (Formerly LambdaTest)/The Best Greptile Alternative for Deployed Apps

TestMu AI forEnterprise

Get access to solutions built on Enterprise
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Advanced Local Testing
Premium Support options
Early access to beta features
Private Slack Channel
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The Best Greptile Alternative for Deployed Apps

A Sandbox, or Your Real Environment

Two Layers of Quality On One Pull Request

Test What You Shipped

What a Sandbox Misses

Keep Verifying After Merge

Pricing, Side by Side

Built for Every Layer of Quality

Success Stories of TestMu AI (Formerly LambdaTest)

More Reasons to LoveTestMu AI (formerly LambdaTest)

TestMu AI Named a Challenger in the 2025 Gartner® Magic Quadrant™

TestMu AI recognized in The Forrester Wave™: Autonomous Testing Platforms, Q4 2025

Wall of Fame

Enterprise-Grade Security

Integrations

Some Love from our Customers

Frequently asked questions

Is TestMu AI a replacement for Greptile?

Does Greptile really run browsers?

So what is the actual difference?

Why does that distinction matter?

Can I run both?

How does pricing compare?

Does it work with AI coding agents?

Where does Greptile win?

What else should I compare?