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 target
Editorial intelligence brief
Editorial focus
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
Editorially verified updates
What changed
Continued integrating W&B Models and Weave into CoreWeave's AI cloud following the completed 2025 acquisition.
External coverage of Weights & Biases
Selected by relevance, date and publisher; grouped by story. External reporting is not independently verified by the map. Article dates are publisher timestamps supplied by the discovery feed; quieter profiles may show coverage up to 90 days old.
Last checked Oct 18, 2026.
No eligible recent coverage found. Verified updates and profile sources remain available above and below.
Source-backed financial history
Funding and financial history
Funding, valuation, revenue, and debt are kept separate so unlike measurements are never presented as one trend.
Records
1
Sum of recorded funding
$100M
Coverage
partial
Partial history: earlier or intervening rounds may be missing. The sum covers only the announcements recorded here, not lifetime funding. Announced commitments may be paid over time; this is not a cash balance. Dates show announcements or first public reports, which can follow the investment itself.
One funding announcement recorded. More dated rounds are needed to show funding over time.
#1
Series C · More than $100M
Running tracked total: $100M
#1
Series C · More than $100M
Running tracked total: $100M
Sources and details for every recorded funding announcement, newest first.
Weights & Biases / PR Newswire ↗ source for Series C More than $100M
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 target
Weekday
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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