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Weights & Biases (W&B)

A machine learning development and observability platform for tracking experiments, managing models and artifacts, and visualizing results across the ML lifecycle.

Introduction

Weights & Biases (W&B) is a platform for the full machine learning lifecycle. It provides experiment tracking, hyperparameter logging, artifact storage, and interactive visual reports to help teams iterate and ship models faster.

Key Features

  • Experiment tracking (Track): record metrics, hyperparameters and outputs.
  • Reports and visualization: interactive dashboards and comparison views.
  • Artifacts and dataset/model versioning for reproducibility.

Use Cases

  • Tracking and reproducing training experiments during research.
  • Sharing interactive reports and analyses across teams.
  • Managing model versions and monitoring performance in production.

Technical Details

  • SDKs for Python and integrations with major frameworks (PyTorch, TensorFlow, Hugging Face).
  • Supports cloud-hosted and self-hosted deployments for different scale and privacy needs.
  • Deep integration with W&B features like Tables, Reports and Weave for analysis and debugging.

Comments

Weights & Biases (W&B)
Resource Info
Author Weights & Biases
Added Date 2025-09-30
Open Source Since 2017-03-24
Tags
Open Source ML Platform Data Product