Faster GitHub Actions. Same workflows.

Monk CI is the fastest GitHub Actions runner, delivering high performance at a highly competitive cost. It is built for engineering teams that want shorter CI/CD build times without replacing GitHub Actions. You keep your existing GitHub workflows, actions, secrets, triggers, and deployment steps. Monk CI replaces the runner infrastructure underneath GitHub Actions, so your pipelines run on faster cloud runners with optimized caching and Docker build performance. Monk CI has been benchmarked against leading GitHub Actions runner competitors to validate its speed and cost-efficiency claims.

Monk CI is not a full replacement for GitHub Actions. It is a faster alternative to GitHub-hosted runners and other GitHub Actions runner platforms. Your team still uses GitHub Actions for workflows, pull requests, checks, secrets, and automation. Monk CI simply runs those jobs on faster infrastructure, so teams can improve CI/CD performance without migrating to a completely new CI platform.

GitHub-hosted runners are shared machines with limited compute and slower cache performance. Monk CI provides high performance managed runners designed specifically for CI/CD workloads. Monk CI helps reduce build time using faster compute, optimized action cache restores, Docker layer caching, and better runner availability. This is useful for teams whose GitHub Actions builds take 10, 20, or 40 minutes and slow down engineering velocity.

No. Monk CI works with your existing GitHub Actions workflows. You only change the runner label in your workflow YAML to monkci-ubuntu-latest for the fastest builds or monkci-ubuntu-24.04-4 for cost optimisation. Your existing GitHub Actions steps, matrix builds, reusable workflows, composite actions, secrets, OIDC tokens, and deployment jobs continue to work as before.

You can get started in seconds with Monk CI’s Migration Wizard. Connect your GitHub organization, select the repositories and jobs you want to migrate, and choose which Monk CI runners to use. The wizard automatically updates the runs-on runner labels in your selected workflows and opens one PR per repository, covering the selected jobs in one go. Review each PR and merge with a click. Your next workflow run uses Monk CI, with no manual workflow edits to worry about.

For paid Linux x64 runners with 4 vCPU, Monk CI costs $0.008 per minute versus GitHub’s $0.012—33% cheaper per minute. Faster builds can reduce the total cost per build further. Actual savings depend on your workflow and runner size. See our benchmarks for build times and estimated costs.

Yes. Monk CI has been benchmarked against leading GitHub Actions runner competitors and standard GitHub-hosted runners across build speed, runner performance, Docker build acceleration, caching, and cost-efficiency. These benchmarks help teams compare Monk CI against other CI/CD runner options before switching.