Developer Tools
Weights & Biases
A leading machine-learning experiment-tracking and observability platform used by more than 1,400 organizations to train, evaluate and monitor AI models. CoreWeave acquired Weights & Biases for a reported $1.7 billion in a deal announced in March 2025 and completed May 5, 2025, combining CoreWeave's compute capabilities with Weights & Biases' developer tooling to create a unified, end-to-end AI development platform.
Sources
Every claim traced to a primary source — evidence, recent activity, and insider filing behavior, all in one place.
Evidence
1 source · 56% avg. source confidence
- CoreWeave / Yahoo Finance — CoreWeave completes $1.7B acquisition of Weights & Biases56% source confidence
Dependency Map
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The Story So Far
Auto-generated from this entity's dated milestones, relationship updates, and sourced evidence — not AI-written, just sorted.
Weights & Biases's Timeline
A sourced, dated history of Weights & Biases's key moments — founding to present.
Jan 2017 · Founded
Weights & Biases was founded to build machine-learning experiment-tracking and observability tools.
Mar 2025 · CoreWeave announces acquisition
CoreWeave announced its acquisition of Weights & Biases for a reported $1.7 billion.
May 2025 · Acquisition completed
CoreWeave completed its acquisition of Weights & Biases, combining CoreWeave's compute capabilities with Weights & Biases' suite of tools for model training, evaluation and monitoring into a unified, end-to-end AI development platform serving more than 1,400 organizations.