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Machine Learning · head to head

ClearML vs MLflow

ClearML logo

ClearML

Machine Learning

Open-source MLOps platform for experiment tracking and orchestration

From
Free
Rated
-
MLflow logo

MLflow

Machine Learning

Open source platform for managing the ML lifecycle

From
Free
Rated
-

The short version

  • Each has a real cost: ClearML broad scope means more to learn and more to run than a focused tracking tool; MLflow requires infrastructure setup: teams must manage MLflow tracking server, database, and artifact storage themselves
  • They diverge on capability: ClearML covers Remote execution, MLflow covers Model registry.

Where they differ

Only the attributes on which ClearML and MLflow actually diverge.

Attributes where ClearML and MLflow differ
AttributeClearMLMLflow
Pricing modelOpen-source self-hosted, with paid hosted and enterprise tiersopen-source
PlatformsLinux, macOS, Windows, Docker, KubernetesWeb, Python API, REST API
FoundedUnknown2018

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Machine Learning).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ClearML

  • Remote execution
  • Data versioning
  • Pipelines

Only in MLflow

  • Model registry
  • Model packaging
  • Deployment
  • Project organization
  • TensorFlow
  • PyTorch
  • scikit-learn
  • Spark

Both cover

  • Experiment tracking

What people use each for

The jobs each tool is most often brought in to do.

ClearML

  • Tracking experiments across a team so results are reproduciblenot MLflow
  • Moving training from laptops to shared GPU hardware without repackagingnot MLflow
  • Versioning datasets alongside the experiments that consumed themnot MLflow

MLflow

  • Machine learningnot ClearML
  • Data analysisnot ClearML
  • Model trainingnot ClearML
  • Predictive analyticsnot ClearML

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ClearML

  • Broad scope means more to learn and more to run than a focused tracking tool
  • Self-hosting the server is real infrastructure — database, file storage and web server
  • Documentation quality is uneven across the newer parts of the platform
  • Smaller community than the most popular tracking tools, so fewer worked examples exist

MLflow

  • Requires infrastructure setup: teams must manage MLflow tracking server, database, and artifact storage themselves
  • Basic UI and visualization: lacks rich interactive dashboards and real-time monitoring compared to commercial platforms
  • Limited collaboration: no built-in role-based access control or multi-user management features
  • Production monitoring gaps: drift detection, explainability, and alerting require separate dedicated tools

Pricing, plan by plan

ClearML

Free
  • Open sourceFree
    • Experiment tracking
    • Pipelines
    • Self-hosted server

MLflow

Free
  • Open SourceFree
    • Experiment tracking
    • Model registry
    • Deployment tools

Which should you pick?

Choose ClearML if

  • You need remote execution.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want data versioning.

Choose MLflow if

  • You need model registry.
  • You want to start without paying.
  • You work on Web, Python API, REST API.
  • You also want model packaging.

Questions people ask

Is ClearML or MLflow better?
Neither clearly leads. ClearML starts at Free and MLflow at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ClearML or MLflow?
ClearML starts at Free and MLflow at Free.
Does ClearML or MLflow run on more platforms?
ClearML runs on Linux, macOS, Windows, Docker, Kubernetes. MLflow runs on Web, Python API, REST API.
Can I use ClearML for free?
Both have a free tier, so you can try either at no cost before committing.
What is ClearML best used for?
ClearML is most often used for tracking experiments across a team so results are reproducible, moving training from laptops to shared gpu hardware without repackaging, versioning datasets alongside the experiments that consumed them. Of those, tracking experiments across a team so results are reproducible and moving training from laptops to shared gpu hardware without repackaging are not what MLflow is typically brought in for.
What can ClearML do that MLflow cannot?
ClearML covers Remote execution, Data versioning, Pipelines. MLflow covers Model registry, Model packaging, Deployment, Project organization. Both handle Experiment tracking.

Answered from the vendors’ own pages

ClearML: Is ClearML free?

The open-source version is free and self-hostable. Hosted and enterprise tiers are paid.

MLflow: Is MLflow free to use?

Yes, MLflow is completely open-source and free. However, teams typically incur infrastructure costs for hosting and maintaining the MLflow tracking server. Databricks offers Managed MLflow as a commercial option for cloud deployment.

Source
ClearML: How much code does tracking require?

Very little — adding a couple of lines to an existing training script captures parameters, metrics and environment automatically.

MLflow: Can MLflow track experiments for different ML frameworks?

Yes, MLflow is framework-agnostic and works with TensorFlow, PyTorch, scikit-learn, XGBoost, and any other ML framework. This flexibility is a core design principle allowing teams to use diverse tools.

Source
ClearML: Does ClearML replace MLflow?

It covers MLflow’s tracking and adds orchestration, remote execution and data versioning. Whether that breadth is an advantage or extra weight depends on whether you need the rest.

MLflow: Does MLflow include a model registry?

Yes, MLflow Model Registry (added in 2018) provides a central model store with versioning, stage transitions, and deployment tracking. This enables production model governance and lineage tracking.

Source
MLflow: What are MLflow's main limitations?

MLflow requires significant infrastructure setup and maintenance. The UI is basic compared to commercial tools, collaboration is limited without third-party RBAC solutions, and production monitoring requires separate tools for drift detection and alerting.

Source
MLflow: Can MLflow handle LLM and agent tracing?

MLflow added LLM and agent tracing capabilities in recent versions, though the native support is limited compared to specialized LLM observability platforms that replaced weak LLM tracing.

Source
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