Weights & Biases

Weights & Biases (W&B) is the leading MLOps platform for tracking experiments, visualizing model performance, and managing the machine learning lifecycle. Used by teams at OpenAI, NVIDIA, and thousands of ML teams worldwide.

Founded in 2017, became the standard for ML experiment tracking. Used by 80%+ of top AI research labs. Expanded into full MLOps lifecycle management. Adopted by OpenAI, Hugging Face, NVIDIA, and Samsung.