# Weights & Biases: robot AI company

Canonical ID: `48c3c7b1-402a-44a6-b8a7-84079896a3fe`

## Key facts

- **Headquarters:** San Francisco, CA, USA
- **Founded:** 2017
- **Status:** private
- **Type:** brain
- **Founded:** 2017, San Francisco CA
- **Founders:** [Lukas Biewald](/people/lukas-biewald.md) (CEO, ex-Figure Eight), [Chris Van Pelt](/people/chris-van-pelt.md) (Distinguished Engineer, ex-Figure Eight), [Shawn Lewis](/people/shawn-lewis-wandb.md)
- **Funding:** $250M over 5 rounds. Series C $135M at $1B valuation (2022). Strategic $50M at $1.25B (Aug 2023, Nat Friedman + [Daniel Gross](/investors/daniel-gross.md) lead). ([see investors](/investors.md))
- **Acquired:** Acquired by CoreWeave (NASDAQ: CRWV) for ~$1.7B in May 2025
- **Products:** W&B Experiment Tracking, W&B Models (registry), W&B Weave (LLM observability, GA 2024), W&B Prompts (LLMOps, Aug 2023)
- **Customers:** OpenAI, Meta, NVIDIA, Cohere, Hugging Face, Stability AI. ~$50M ARR, 1M+ developers, 700K+ users
- **Partnerships:** AWS (Partner Award finalist 2024), Microsoft (Partner of the Year finalist 2024), NVIDIA NIM, NTT DATA, LG CNS, DoD Defense Innovation Unit
- **Robotics Applications:** Dedicated robotics webinar for tracking RL training dynamics; used by robotics/autonomous systems teams for experiment tracking in simulation pipelines
- **Security:** UpGuard rating 795/950. Cranium AI partnership for AI safety (May 2026). NDA-based vulnerability disclosure program.

- **Slug:** weights-and-biases
- **Status:** private
- **Founded:** 2017
- **HQ:** San Francisco, CA, USA

## Models

_No models registered._

## Current leadership (3)

- [Lukas Biewald](/people/lukas-biewald.md) Co-founder & CEO (secondary-verified)
- [Chris Van Pelt](/people/chris-van-pelt.md) Co-founder & Distinguished Engineer (secondary-verified)
- [Shawn Lewis](/people/shawn-lewis-wandb.md) Co-founder (secondary-verified)

## Supplies to

_No verified supply relationships on file. Supply-chain coverage is being added across the registry; check back as the seed populates this company's outbound edges._

_Outbound supply edges. Each appears when verified with at least two strong sources. Sources are append-only; corrections add new sources rather than rewrite history._

## Common questions

### What is Weights & Biases?

ML experiment tracking and model management platform widely used by robotics teams to track RL training runs, sim-to-real experiments, and model deployment.

### What does Weights & Biases make?

Weights & Biases has no robot models recorded on the DEPLOY registry. Weights & Biases builds robot foundation models or autonomy software.

### Is Weights & Biases publicly traded?

Weights & Biases is not independently listed on public markets; it is part of CoreWeave (NASDAQ: CRWV on the DEPLOY registry.

### How can I invest in Weights & Biases?

Weights & Biases has no separately traded stock; it is owned by CoreWeave (NASDAQ: CRWV (the parent is the entity that trades, where it is public).

### Where is Weights & Biases headquartered?

Weights & Biases is headquartered in San Francisco, CA, USA.

### Who owns Weights & Biases?

Weights & Biases is owned by CoreWeave (NASDAQ: CRWV, per the DEPLOY registry.

### Is Weights & Biases a top robotics company?

On DEPLOY's intelligence score, which blends verified deployments, funding, hiring, media, safety, and IP signals, Weights & Biases ranks in roughly the top 64% of companies tracked by the registry.

### When was Weights & Biases founded?

Weights & Biases was founded in 2017.


## Sources (1)

1. https://wandb.ai

## The verified answers

- [Which companies have the most robots deployed](/which-companies-have-the-most-robots-deployed.md)
- [Which operators run the most robots](/which-operators-run-the-most-robots.md)
- [Which robot operators cover the most countries](/which-robot-operators-cover-the-most-countries.md)

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