compare
Aim vs MLflow
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Aim | MLflow |
|---|---|---|
| Language | Python | Python |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 6.3k | 28k |
| Latest | v3.29.1 | v3.16.1 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 37 days between releases | about 11 days between releases |
| Active contributors | 0 commit authors on the default branch in the last 90 days | 98+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Weights & Biases. Alternatives to Weights & Biases →
PartialAimLogs and compares training runs in a local UI, without hosted collaboration.
Full replacementMLflowA tracking server for runs, metrics and artefacts, with a model registry.
Aim
- v3.29.12025-05-08🚀 v3.29.1 - Improved query performance by reading from single unified database and constant data indexing, fixes in min/max calculation in UI and jupiter/colab integration
- v3.28.02025-03-21🚀 v3.28.0 - Improved performance by removing redundant checks and bypassing runs known to yield false results, new callback for hugging face distributed runs, fixes in Tag duplicates handling, remote tracking exception handling and more, code style improvements.
- v3.27.02024-12-18🚀 v3.27.0 - Enhancements for PytorchLightning logger and S3ArtifactsStorage, fixes for RunStatusReporter, metric aggregations and tag creation from parallel runs
- v3.26.12024-12-03🚀 v3.26.1 - Improved performance of metric queries, basic troubleshooting utilities
- v3.25.12024-11-06🚀 v3.25.1 - Fixes in empty index.db handling and python 3.12 builds
MLflow
- model-catalog/latest2026-04-06Model Catalog
- v2.11.52026-09-23MLflow 2.11.5
- v3.16.12026-09-17MLflow 3.16.1
- v3.16.02026-09-04MLflow 3.16.0
- v3.15.22026-08-26MLflow 3.15.2 is a patch release that includes several major features and improvements.
Aim
unsigned The latest release, v3.29.1, carries no signature GitHub could verify.
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MLflow
✓ signed The latest release, v3.16.1, carries a signature GitHub verified.
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