Snorkel AI raises $350M Series E at $3.5B valuation, surpasses $375M ARR
ajratner · x · 2026-09-23
Snorkel AI announced a $350M Series E led by Insight Partners and S32, at a $3.5B valuation — 7.5 years after GV and Greylock co-led its first round out of Stanford's AI lab.
Key numbers:
- Revenue grew 18x+ in the 12 months since launching its Data-as-a-Service offering
- ARR passed $375M this week
CEO Alex Ratner argues that as AI approaches superhuman capabilities, basic staffing and crowdsourcing for data work aren't enough; Snorkel is building an "RSI data engine" and frontier data lab that combine human expertise with specialized AI in compounding ways.
Related event: Snorkel AI Raises $350M Series E at $3.5B Valuation(15 posts)→
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