Weights & Biases
Research Team Data
Acquired
Published
AI developer platform for models, agents, evaluation and observability
Acquired by CoreWeave
Company profile
Overview
AI developer platform for training, fine-tuning, evaluating, tracing, monitoring and productionizing AI models, agents and applications; acquired by CoreWeave in 2025.
W&B Models and Weave support experiment tracking, model training, fine-tuning, inference, evaluation, tracing, monitoring and production AI application development, integrated with CoreWeave cloud after acquisition.
At a glance
Key facts
- HQ location
- San Francisco, CA, USA
- Founded
- 2017
- Employee range
- 201-500~304
- Funding stage
- Acquired
- Company type
- UnknownAcquired (by CoreWeave)
- Last updated
- Pricing model
- SubscriptionUsage BasedUsage-based SaaS subscription / enterprise contracts
Business context
Financials
- Revenue estimate
- Unknown
- Valuation estimate
- $1.7B (acquisition price)
- Investments
- Acquired by CoreWeave for $1.7B (March 2025). Pre-acquisition: $250M raised (Coatue, GV, Insight Partners, NVIDIA)
Market context
Relationships
- Target customers
- AI labs, ML engineers, AI developers and enterprise model/application teams
- Key competitors
- Arize AI, Neptune.ai
- Known customers
- OpenAI, NVIDIA, AstraZeneca, Canva, Snowflake
Source context
Classification (raw research text)
- Core focus
- ML experiment tracking
- Core industry
- Enterprise AI development / MLOps
- Core category
- AI developer platform / MLOps and LLMOps
Shown verbatim from the research spreadsheet — deriving structured industry tags from this text is a future phase.
Market taxonomy
Segments, Industries & Certifications
Segments
AI WorkflowsAI AgentsLLM Fine-tuningAI Developer ToolsKnowledge & RAGLLM DeploymentAI Quality & ObservabilityTraditional MLAI Governance & RiskChatbotsAnalytics & BI