Vendor profile · Directory · Data lab
Snorkel AI
The Stanford spinout that started as programmatic labeling software and now sells research-driven expert datasets, benchmarks and evaluations as a service.
| Model | Data lab — expert data development as a service (ex-platform) |
|---|---|
| Founded | 2019 |
| Headquarters | Redwood City, CA |
| Pricing | Not published — quoted after a scoping call; third-party reports put entry enterprise contracts near $50,000–$60,000/year |
| Website | snorkel.ai |
What Snorkel AI does
Snorkel AI was founded in 2019 out of the Stanford AI Lab on research into data programming and weak supervision: instead of hand-labeling every example, teams wrote labeling functions that generated training labels at scale. Its original platform, Snorkel Flow, built the company’s reputation.
Today Snorkel sells expert data development as a service — off-the-shelf datasets and environments, custom datasets, RL environments, benchmarks and evaluations built with credentialed domain experts. It raised a $350 million Series E in September 2026 at a $3.5 billion valuation.
Strengths
- Deepest research pedigree in the category (Stanford AI Lab origins)
- Benchmarks and evaluation design are core strengths, not add-ons
- Programmatic-labeling heritage still informs its data-development method
Considerations
- No published pricing; contract figures come from third-party reports
- The pivot from platform to services means older Snorkel Flow reviews describe a product that is no longer the offer
- Enterprise-only motion — not a fit for small pilots without budget
Other data labs in the directory
- Zeton — A data lab selling finished expert work product — demonstrations, preference pairs, graded eval sets and RL environments, each shipped with its rubric and provenance.
Frequently asked questions
What does Snorkel AI do?
The Stanford spinout that started as programmatic labeling software and now sells research-driven expert datasets, benchmarks and evaluations as a service.
How much does Snorkel AI cost?
Snorkel AI does not publish pricing (not published — quoted after a scoping call; third-party reports put entry enterprise contracts near $50,000–$60,000/year). Any figure quoted by third parties is an estimate; budget discovery requires engaging the vendor directly.
Who is Snorkel AI best for?
Enterprises and labs that want benchmarks, evaluations and expert datasets built with academic-grade rigor, delivered as a service.
Who should not use Snorkel AI?
Teams looking for a self-serve labeling tool today — the platform era has been replaced by services, and every engagement starts with a scoping call.
Sources
Facts on this page were drawn from the public sources above, checked November 2026. If you spot an error, tell us at the corrections address in the footer — we fix sourced errors and note the change.
Profile last updated: November 8, 2026 · How we write profiles · Corrections: contact@bestdataannotation.com