Compare / MLflow vs Aim
MLflow vs Aim
Pick MLflow if you want the common Apache-2.0 tracker (the published Weights and Biases stack). Pick Aim if you want that experiment-tracker UI.
Facts checked 21 Oct 2026. License, language, and GitHub activity come from the catalog or the project's own repo. "Not in the catalog row" means the public catalog dump does not store that number.
MLflow in the catalog Aim in the catalog Start on Railway
How they compare
| MLflow | Aim | |
|---|---|---|
| License | Apache-2.0 (catalog) source | Apache-2.0 (catalog) source |
| Language | Python (catalog) | Python (catalog) |
| GitHub activity | 28,480 stars in the catalog source | 6,288 stars in the catalog source |
| Self-host | Published as /stacks/mlflow-tracking. Tracking server plus artifact store. | Same stack as the sibling UI. Official docs at aimstack.io. |
| Best for | The published W&B replacement. | That UI if MLflow is not the shape. |
Self-hosting and resource needs
Both are on /stacks/mlflow-tracking. MLflow is mlflow/mlflow. Aim is aimhubio/aim. LLM traces stay on /replace/langsmith. Neither has a one-click c17 Railway template.
FAQ
- Is this LangSmith?
- No. LLM traces are /replace/langsmith (Langfuse). This pair is training and eval runs.
- MLflow or Langfuse?
- /compare/mlflow-vs-langfuse.
- Are these free?
- Both catalog rows are Apache-2.0. You pay disk and compute.
- How do I deploy MLflow?
- Open /stacks/mlflow-tracking. Persist the backend store and artifacts. Log one run.
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