MoneyThe story, in brief
Training data provider Snorkel AI raises $350M at $3.5B valuation
$350M at $3.5B valuation. Snorkel AI's Series E signals where the capital is flowing in 2026: training data infrastructure.
The KeyNews take
Why it matters
Training data providers are becoming strategic assets as frontier labs compete on data quality and scale. A $3.5B valuation for Snorkel signals investor conviction that data curation—not just compute or models—will be a bottleneck and defensible business.
The key facts
6 to knowSnorkel AI raised $350M in Series E
$3.5B post-money valuation
Led by Insight and S32
Alphabet GV participated
Founded 2019 by Stanford researchers
Training data provider (core AI infrastructure)
Go to the source
SiliconAnglesiliconangle.com
Publisher excerpt: Snorkel AI Inc., a provider of artificial intelligence training data, today disclosed that it has raised $350 million in funding. Insight and S32 led the Series E deal. They were joined by more than a half-dozen other backers including Alphabet Inc.’s GV startup fund. Snorkel AI was founded in 2019…