{
  "id": 9231399,
  "title": "Training data provider Snorkel AI raises $350M at $3.5B valuation",
  "url": "https://urgent.news/2026/09/23/training-data-provider-snorkel-ai-raises-350m-at-3-5b-valuation",
  "topic": "ai",
  "section": "AI",
  "published": "2026-09-23T00:30:49.000Z",
  "source": {
    "name": "SiliconANGLE",
    "slug": "siliconangle",
    "url": "https://siliconangle.com/2026/09/22/training-data-provider-snorkel-ai-raises-350m-at-3-5b-valuation/"
  },
  "original_language": "en",
  "account": "Artificial intelligence training data provider Snorkel AI has raised $350 million in funding, bringing its valuation to $3.5 billion. Insight Partners and S32 led the Series E deal, joined by Alphabet Inc. 's GV startup fund and over half a dozen other investors. Founded in 2019 by researchers from Stanford AI Lab, Snorkel AI's first product was Snorkel Flow, a software platform that automated the process of creating supervised learning datasets. Supervised learning involves training neural networks using labeled datasets comprised of prompts and correct answers. Snorkel Flow reduced the time-consuming task of creating these datasets using statistical methods developed by the company's Stanford founders, addressing accuracy issues of earlier automation approaches. In 2022, Snorkel AI shifted its focus from selling software to providing ready-to-use training datasets and expanded its offerings to include reinforcement learning, a more complex AI training approach. Reinforcement learning datasets contain unanswered questions, requiring AI models to figure out answers without human assistance. The company relies on tens of thousands of human experts to generate reinforcement learning training tasks and provides customers with technical assets for AI training runs. Snorkel AI develops AI evaluation rubrics and improves them based on human reviewer feedback. In 2023, the company reported an 18-fold growth in revenue, crossing an annualized run rate of $375 million. The newly raised funds will be used to hire more engineers, invest in AI safety initiatives, and support the development of open-source model evaluation benchmarks.",
  "summary": "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 by researchers from the Stanford […] The post Training data provider Snorkel AI raises $350M at…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "TechCrunch",
        "title": "Snorkel AI triples valuation to $3.5B as demand for AI training data booms",
        "url": "https://urgent.news/2026/09/22/snorkel-ai-triples-valuation-to-3-5b-as-demand-for-ai-training-data",
        "published": "2026-09-22T21:56:43.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}