Experiment Tracking with Neptune

!!! warning "Retired integration"

Neptune's hosted service shut down on March 6, 2026 at 12:00 UTC. Hosted data was permanently deleted and can no longer be exported.

Neptune was an experiment-tracking service previously supported by Ultralytics. Its hosted service and API are no longer available, and Ultralytics no longer includes the retired Neptune callback.

Choose an active experiment-tracking integration for new training runs.

FAQ

Why was the Neptune integration removed?

Neptune shut down its hosted service on March 6, 2026, so the callback no longer had a service to log to. Ultralytics removed it rather than ship a dead dependency.

Which experiment trackers can I use instead?

Ultralytics ships callbacks for Comet, ClearML, MLflow, TensorBoard, Weights & Biases, and DVCLive. Enable one with yolo settings, for example yolo settings comet=True, and training runs are logged automatically.