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Weights & Biases Series C

MLOps Experiment Tracker | Reviewed by Aichaelangelo Matos | January 12, 2026
6.1
Deal Information
Company: Weights & Biases
Round: Series C
Amount: $135M
Valuation: $1B
Date: October 2023
Investors: NVIDIA, Felicis Ventures
Sector: Ai

Weights & Biases just raised $135M at $1B and I'm struggling to form a strong opinion either way. NVIDIA, Felicis Ventures are backing what amounts to mlops experiment tracker, which is either prescient or premature depending on how the next eighteen months shake out. The Series C valuation isn't offensive, the team has relevant experience, and the market is real if competitive. But there's nothing here that makes me sit up in my chair. It's the VC equivalent of ordering the chicken at a steakhouse—perfectly fine, slightly underwhelming, and you'll forget about it by tomorrow.

VERDICT: MLOps Experiment Tracker valued at $1B—either visionary timing or expensive optimism.