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SPECIFICTION
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OpenML vs Weights & Biases

OpenML

openml.org

Weights & Biases

wandb.ai

Side by side

FigureOpenMLWeights & Biases
Price fromFree$60/mo
Free planYesYes
Free trial—Yes
Open source——
WebYesYes
Windows—Yes
macOS—Yes
Linux—Yes
iOS—Yes
Android—Yes
APIYesYes
Self-hosted—Yes
Plans published15
Spec score · Experiment Tracking7.4 (#10)8.6 (#4)
Spec score · ML Experiment Tracking Software7.3 (#22)8.6 (#5)
APIOpenML offers a REST API for uploading and downloading machine learning resources, with XML and JSON endpoints.W&B provides a full Data API for exporting data logged to the service.
Experiment trackingOpenML supports automatic tracking and sharing of pipelines, called flows, and experiment runs.The platform automatically records machine-learning pipeline details and provides contextual visual analysis.
IntegrationsThe documentation lists integrations for Python/scikit-learn, PyTorch, TensorFlow, R, Julia, Rust, and .NET.W&B is designed to integrate with customers' ML stacks and tools and offers managed or self-managed deployment choices.
ReproducibilityOpenML tracks experiment metadata including algorithms, hyperparameters, datasets, metrics, and hardware.W&B records experiment histories, code, hyperparameters and datasets so teams can reproduce models and track their evolution.
SupportOpenML lists its community discussions and the contact address [email protected].Support tiers are Standard, Standard Plus and Premium; Premium adds 24/7 coverage, faster response targets, roadmap sessions and engineering access.

Plans

OpenML

  • FreeFree

OpenML pricing →

Weights & Biases

  • FreeFree
  • PersonalFree
  • Pro$60 a month
  • Advanced EnterprisePriced on request
  • EnterprisePriced on request

Weights & Biases pricing →

In their own words

OpenML

OpenML has no write-up on Specifiction yet; its figures are above.

Visit openml.org

Weights & Biases

Weights & Biases has no write-up on Specifiction yet; its figures are above.

Visit wandb.ai