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Weights & Biases: the AI developer platform. Build better models faster, fine-tune LLMs, develop GenAI applications with confidence, all in one system of record developers are excited to use. W&B Models is the MLOps solution used by foundation model builders and enterprises who are training, fine-tuning, and deploying models into production. W&B Weave is the LLMOps solution for software developers who want a lightweight but powerful toolset to help them track and evaluate LLM applications. Weights & Biases is trusted by over a 1,000 companies to productionize AI at scale including teams at OpenAI, Meta, NVIDIA, Cohere, Toyota, Square, Salesforce, and Microsoft. Sign up for a 30-day free trial today at http://wandb.me/trial.

Weights & Biases Questions

The Weights & Biases annual revenue was $37.8 million in 2026.

Chris van Pelt is the Co-Founder and CISO of Weights & Biases.

219 people are employed at Weights & Biases.

Weights & Biases is based in San Francisco, California.

The NAICS codes for Weights & Biases are [518, 51121, 511, 51, 5112, 511210].

The SIC codes for Weights & Biases are [737, 73].

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