CML

Continuous Integration for ML projects with GitHub Actions & GitLab CI.

DecliningOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Verified · Jul 12, 2026

Overview

What is CML?

CML is a library that enables continuous integration in machine learning projects by leveraging GitHub Actions and GitLab CI. It automates the training, evaluation of models, and generates visual reports directly within pull/merge requests.

Key differentiator

CML stands out by providing a framework-agnostic solution for automating ML model evaluation and reporting directly within CI/CD workflows, making it ideal for teams that prioritize consistency across different development stages.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Framework and language agnosticmedium

Automates model training and evaluation in CI environmentsmedium

Generates visual reports with metrics and graphs directly in pull/merge requestsmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited integrations with non-GitHub/GitLab CI/CD systemshigh

Primary integration is GitHub Actions and GitLab CI, other CI systems are not officially supported

Performance issues with large datasets or complex modelsmedium

CI environments may have resource constraints that limit the speed and efficiency of model training and evaluation

Fit analysis

Who is it for?

✓ Best for

Teams that need to automate the evaluation of machine learning models in CI/CD pipelines

Projects requiring automated generation of visual reports for model performance metrics

Developers working with multiple ML frameworks and languages who want a consistent integration solution

✕ Not a fit for

Projects that do not use GitHub Actions or GitLab CI as their CI/CD platform

Teams looking for a fully managed service without the need to set up CI pipelines manually

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with CML

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →