Series C · More than $100M
More than $100M Series C.
Vertical + Enterprise · Big tech · Deployment
Weights & Biases
✓ VerifiedWeights & Biases remains a core developer platform for training, evaluation, and model operations, which makes it important even as more AI companies try to absorb those workflows into broader stacks.
San Francisco, USFounded 2017API accessWeekday review
Editorial intelligence brief
What matters now
Continued integrating W&B Models and Weave into CoreWeave's AI cloud following the completed 2025 acquisition.
Focus: AI developer tooling for experiment tracking, evaluations, agent workflows, and model operations
Latest funding
More than $100M
Series C · source-backed
Tracked funding
$100M
Sum of itemized funding events
Latest valuation
Not tracked
No source-backed record
Latest revenue
Not tracked
Deployment lifecycle position
Source-backed financial history
Capital and commercial trajectory
Funding, valuation, revenue, and debt are kept separate so unlike measurements are never presented as one trend.
Records
1
Tracked total
$100M
Coverage
partial
#1
Series C · More than $100M
Running tracked total: $100M
Every numbered chart marker maps to one source-linked funding announcement below.
Weights & Biases / PR Newswire ↗ source for Series C More than $100M
Chronological activity
What changed
Continued integrating W&B Models and Weave into CoreWeave's AI cloud following the completed 2025 acquisition.
A structured event record is still being assembled for this company.
Recent coverage of Weights & Biases
Consolidated by storyCoreWeave debuts ARIA agent to automate AI research in Weights & Biases
SiliconANGLE · 2 related sources · Jun 29
Cranium AI and Weights & Biases Partner to Make AI Safety and Security a Standard Part of Model Development
Business Wire · May 21
Accelerate Enterprise AI Development using Weights & Biases and Amazon Bedrock AgentCore | Artificial Intelligence
Amazon Web Services (AWS) · Dec 23
Product surface
Products and model families
Recent models
No standalone model family is structured for this profile.
Products
W&B WeaveW&B ModelsExperiment tracking
Open weights
No
API access
Yes
Review cadence
Weekdays
Market position
Lifecycle and strategic signals
Research
Preview
Growth
Deployment
Deployment: Production & at scale
Focus
AI developer tooling for experiment tracking, evaluations, agent workflows, and model operations
Signals
Developer toolingEvaluationsMLOps
Taxonomy
Agentic Coding ToolsDeveloper toolsVertical + EnterpriseInfrastructure
Competitive context
DatadogCometMLflow
Infrastructure & distribution
Where Weights & Biases sits in the AI stack
01
Model layer
No standalone model family tracked
02
Access layer
Managed API
03
Market layer
Vertical + Enterprise
Public product surface
W&B WeaveW&B ModelsExperiment tracking
Stack signals
Developer toolsEnterpriseInfrastructureDeveloper toolingEvaluationsMLOps
This section reflects publicly visible product and access signals. Undisclosed GPU, cloud, training, and data-center contracts are not inferred.
Evidence trail
Sources and corrections
Primary and public sources used to verify the structured company profile.
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