About
Weights & Biases is an AI developer platform that offers a range of tools for building, tracking, managing, and deploying AI agents, applications, and machine learning models. Founded in 2017, the company aims to provide the best resources for AI developers. It serves thousands of companies and millions of practitioners globally, including teams at OpenAI, NVIDIA, and Cohere. In May 2025, Weights & Biases was acquired by CoreWeave, continuing its focus on tools for the generative AI era. The platform features an integrated suite of products that support both LLMOps and MLOps workflows. Key offerings include W&B Weave for building AI applications, W&B Models for experiment tracking and visualization, and a Registry for sharing ML models and datasets. The platform is designed for enterprise use, ensuring compliance with various standards and providing robust security features. Weights & Biases is headquartered in San Francisco and has a dedicated team of 253 employees.