Snorkel AI raises $350 million

Snorkel AI has raised $350 million at a $3.5 billion valuation, nearly three times its valuation in May 2025. Insight Partners and S32 led the round, with participation from Addition, Greylock, and Wells Fargo.

The company develops training data and evaluation tools for AI models.

QBE Ventures invested in Snorkel AI in 2024. At the time, QBE said its North American teams were using Snorkel Flow to prepare company data for machine learning applications in claims and underwriting. The companies also planned to develop AI tools and approaches for insurance use cases.