Captain vs HyperExecute
Captain
rwx.com
HyperExecute
testmuai.comSide by side
| Figure | Captain | HyperExecute |
|---|---|---|
| Price from | Free | $103/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 6 |
| Spec score · Test Flakiness Management Software | 9.4 (#3) | 8.9 (#5) |
| CI integrations | Captain documentation provides integrations for RWX, GitHub Actions, CircleCI, Buildkite, GitLab and other CI/CD platforms. | The site lists Jenkins, GitHub Actions, GitLab, Azure DevOps, CircleCI, Bitbucket, AWS CodePipeline, TeamCity, Bamboo CI, Travis CI, GoCD, and Semaphore. |
| Company size | LinkedIn lists RWX as having 11–50 employees. | LinkedIn lists TestMu AI as a privately held software company with 201–500 employees. |
| Documentation depth | Captain documentation covers quickstarts, installation, framework-specific setup, CI providers, cloud API, configuration and CLI commands. | The documentation includes getting started, YAML configuration, CLI, MCP, private cloud, integrations, security settings, API-related guides and release notes. |
| Founded | LinkedIn lists RWX as founded in 2022. | 2017 |
| Framework support | The documented integrations include xUnit, ExUnit, Ginkgo, go test, Bun, Cucumber, Cypress, Jest, Karma, Mocha, Playwright, TestCafe, Vitest, PHPUnit, pytest, unittest, minitest, and RSpec. | Documented integrations include Selenium, Playwright, Cypress, Puppeteer, Appium, Espresso, XCUITest, Maestro, Detox, JMeter and Gatling. |
| Funding news | VentureBeat reported on August 4, 2026 that RWX raised a $12 million Series A led by Hyde Park Venture Partners. | LambdaTest announced a $38 million round led by Avataar Ventures with Qualcomm Ventures in December 2024, bringing reported total funding to $108 million. |
| Headquarters | Columbus, Ohio, United States | San Francisco, California, United States |
| Public API | Captain Cloud exposes HTTP endpoints under cloud.rwx.com/captain/api and authenticates requests with bearer access tokens. | The API exposes endpoints for browsers, jobs, sessions, stages, logs, artifacts, secrets, job aborts and categorized errors. |
| Rating on G2 | 0 out of 5 from 0 reviews for RWX. | 4.5 out of 5 from 1,820 reviews. |
| Security | RWX says it is SOC 2 Type 2 compliant and that Drata tests its security and IT infrastructure daily. | The service says data is encrypted throughout testing, jobs receive fresh virtual machines, infrastructure is deleted after execution and secrets use a dedicated vault. |
| Support | RWX offers documentation, GitHub issues for open source tools, Discord access to its engineering team, and shared Slack channels for existing customers. | A HyperExecute sample repository says support is available by email and 24x7 chat. |
| What it does | Captain is an open-source CLI for detecting flaky tests, retrying failures, quarantining tests, partitioning test files for parallel jobs, and producing failure summaries. | HyperExecute is TestMu AI's cloud test-orchestration platform for accelerating end-to-end software testing. |
Plans
HyperExecute
- FreeFree
- HyperExecute - Public Cloud Linux$103 a month
- HyperExecute - Public Cloud (Linux Only)$103 a month
- HyperExecute - Public Cloud (MultiOS)$159 a month
- HyperExecute - Public Cloud MultiOS$159 a month
- EnterprisePriced on request
In their own words
Captain
Captain is an open-source command-line tool for finding flaky tests and managing test execution. It measures test reliability, can retry failed tests, and can quarantine flaky ones to unblock builds. By tracking test runtimes, it balances files across parallel jobs. Framework integrations include xUnit, ExUnit, Ginkgo, go test, Bun, Cucumber, Cypress, Jest, Karma, Mocha, Playwright, TestCafe, Vitest, PHPUnit, pytest, unittest, minitest, and RSpec. CI integrations listed include RWX, GitHub Actions, CircleCI, Buildkite, and GitLab. Framework results can be reviewed in a web interface for managing flakes, retries, quarantine, and suite partitioning. Feature availability varies: xUnit does not include partitioning, and Karma does not list retries or partitioning. The free OSS plan includes file-based configuration, partitioning, flaky-test tracking and quarantine, and retries. Pro costs what you agree with the maker, billed per million test results uploaded, and adds analytics on flaky tests and performance trends with 90-day retention.
HyperExecute
HyperExecute is a test orchestration cloud for distributing automated tests across machines through a CLI and YAML configuration. It supports web, mobile, API and performance testing, including browser and operating system combinations. Auto-Split spreads discovered tests across parallel machines; Matrix runs specified browser and OS combinations. Job prioritization and fail-fast settings control execution, and tests can retain video, screenshots, and command, network and console logs. Reports are available for TestNG, Allure, Extent and Cucumber. The product also offers failed-test root cause analysis, flaky-test detection and runtime locator auto-healing. It integrates with CI systems including Jenkins, GitHub Actions and GitLab, and can run on shared cloud, a customer’s cloud account or on-premises. The free plan provides 300 testing minutes and up to two concurrent sessions on Windows or Linux VMs. Public-cloud Linux costs $103 per month billed annually per parallel session; MultiOS costs $159 per month billed annually per session. Tests beyond licensed concurrency are queued.