Company
Company selling data-centric tooling for labelling, evaluating and adapting AI models.
Snorkel AI's LibraryDesignBench puts the best agent-designed library run at 48.9, ahead of 46.6 for human-written production libraries. Because the score also pays for shorter downstream code, the lead measures how easily other agents could use each interface.
Reality
Insight Partners and S32 led $350 million into a business that ships graded tasks, rubrics and reinforcement-learning environments to frontier labs. The price works out near ten times a company-reported run-rate.
Reality
Insight Partners and S32 co-led the round, and the product they are funding is expert-built agentic environments and rubrics that Snorkel says take qualified humans hours or days to construct.
Perspective Coverage
3 publishersReality
PitchBook counts fundraising by climate-specialist venture firms down nearly 40% in 2025 from 2024. On stage at Climate Week NYC, Dawn Lippert and Mike Schroepfer described energy and critical-minerals rounds filling up with generalist money.
Reality
Insight Partners and S32 co-led $350m at a valuation nearly 2.7 times the one Snorkel took in May 2025. The $375m figure underneath it is an annualized run rate, and the company's own launch dates for the service that produced it do not agree.
Reality
The $350m Series E values Snorkel AI at $3.5b, roughly nine times the annualized revenue it reports. What a customer buys now is a written evaluation rubric, a graded dataset and a sandbox to train in.
Reality
ARC Prize ran GPT-6 Astra under two scaffolds and published both, 62.7% through its own minimal interface and 99.9% through OpenAI's Provider Adapter, which cost less. An eval that leaves the harness loose is scoring plumbing.
Reality