Snorkel AI raises $350M Series E at $3.5B valuation, passes $375M ARR
ajratner · x · 2026-09-23
Snorkel AI announced a $350M Series E at a $3.5B valuation, led by Insight Partners and S32, with Lightspeed, Greylock and GV participating.
- The company has grown 18x+ in 12 months since launching its Data-as-a-Service offering, passing $375M ARR this week.
- Its thesis: as AI approaches superhuman capabilities, basic staffing and crowdsourcing for data curation are no longer enough — frontier progress needs human expertise combined with specialized AI in compounding ways, what the team calls an "RSI data engine."
- Snorkel started as a Stanford research project seven years ago and now supplies data pipelines to frontier labs.
Related event: Snorkel AI Raises $350M Series E at $3.5B Valuation(15 posts)→
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