AI Data Startup Snorkel AI Raises $350M at $3.5B Valuation

Snorkel AI, a prominent startup focused on building training data sets and simulated environments for AI, has announced the closure of a $350 million Series E funding round. This investment propels the company's valuation to $3.5 billion, a substantial increase from its previous $1.3 billion valuation 17 months prior. The round was spearheaded by Insight Partners and S32, with participation from existing investors.

Originally offering data labeling automation software, Snorkel AI pivoted last year to a data-as-a-service model. It now provides complete data sets, utilizing a hybrid approach that combines synthetic data generation with subject matter experts. The company reported an annualized revenue run-rate of $375 million, an eighteen-fold increase over the past year, reflecting the strong market demand for AI training data.

Founded on four years of research at a Stanford AI lab, Snorkel AI commercially launched in 2019. Its business model focuses on selling reinforcement learning environments and datasets, with payments to human experts integrated into the cost of goods sold, distinct from headline revenue figures. This strategy positions Snorkel AI favorably amidst a booming sector for AI data solutions.