Why it matters

Untracked experiments waste. Standard practice.

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The architecture

MLflow: open-source.

W&B: hosted, popular.

Neptune: alternative.

Experiment tracking toolsMLflowopen-sourceW&Bhosted popularNeptunealternativeChoose per team; MLflow for self-hosted, W&B for hosted
Tracking options.
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How it works end to end

Log: params, metrics, models, artifacts.

Compare runs.

Model registry.

Integration with training loops.