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Weights & Biases IPO

Weights & Biases provides machine learning operations (MLOps) tools that help data scientists and ML engineers track experiments, manage models, and collaborate on AI projects. The company has become a standard tool in the ML community, serving both individual researchers and large enterprises building AI systems.

No IPO AnnouncedUpdated April 2, 2026

Key Facts

IndustryMachine Learning Infrastructure
Founded2017
HeadquartersSan Francisco, CA
Employees~300
Websitewandb.ai
FundingSeries C at $1B valuation. Total raised: ~$200M

About Weights & Biases

Weights & Biases (W&B) provides an MLOps platform that helps machine learning engineers and data scientists track experiments, visualize training runs, and manage model development workflows. The platform has become particularly popular among AI researchers and ML teams at major tech companies for its intuitive experiment tracking capabilities and collaborative features that make it easier to reproduce and compare machine learning experiments.

The company's tools address critical pain points in ML development, including experiment versioning, hyperparameter optimization, model performance monitoring, and team collaboration. W&B has gained significant adoption in the generative AI space, with many teams using it to track the training of large language models and other foundation models. Their platform integrates seamlessly with popular ML frameworks like PyTorch and TensorFlow.

IPO Status

Weights & Biases has not announced IPO plans and remains a private company. The company has raised significant venture funding, achieving a valuation of over $1 billion and unicorn status. W&B has built a strong position in the MLOps market, with widespread adoption among AI researchers, startups, and large tech companies for managing machine learning workflows. The company benefits from the growing demand for ML infrastructure tools as more organizations adopt AI. However, it faces competition from both specialized MLOps startups and cloud providers offering similar services. Any IPO prospects would likely depend on continued growth in enterprise adoption and the company's ability to expand its platform beyond experiment tracking to broader ML lifecycle management.

Competitors

Frequently Asked Questions

Does Weights & Biases have a stock?

No, Weights & Biases has not had an IPO and remains a private company. The company has not announced any plans to go public.

When is the Weights & Biases IPO date?

Weights & Biases has not announced an IPO date or indicated when it might go public. The company continues to operate privately while expanding its MLOps platform.

How can I buy Weights & Biases stock?

Weights & Biases stock is not publicly available since the company is private. Investment opportunities are limited to private funding rounds for accredited investors.

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