Snorkel AI
AI data company spun out of Stanford Snorkel weak-supervision research; now sells expert-built training datasets, RL environments, benchmarks and evals to frontier AI labs (Snorkel Data Series, custom data development).
Active · Verified 2026-10-29 · fresh as of 2026-10-29 · 16 cited facts, 3 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Programmatic data labelling vendor fix
- Tier
- T1
- Section
- Training infrastructure
- Latest release
- v0.10.0 (2024-02-27) — snorkel (OSS library) registry fix
- License
- proprietary; Snorkel OSS library Apache-2.0 repo fix
- Pricing
- searched not found fix
- Funding
- $350M Series E 2026-09-22 at $3.5B valuation (co-led by Insight Partners and S32, Addition participating) vendor fix
- Freshness
- 2026-10-29 fix
- Layer
- model-infra repo fix
- Licensing
- commercial repo fix
- Developer activity
- OpenRank 0.43 (12-mo avg 1.19) · 1 participants — 2024-09 third-party fix
When to use
Optimised for: searched not found
Anti-fit: searched not found
Pros & cons
Pros
searched not found
Cons
searched not found
Claims & capabilities
$135M Series C (2021) at $1B; growing into LLM/RLHF data.
Technical surface
- API surface
- searched not found
- Backend storage
- searched not found
- Deployment
- searched not found
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- searched not found
- MCP
- searched not found
- A2A
- searched not found
- OpenTelemetry
- searched not found
Similar systems
Other training infrastructure in the catalog, ranked by inbound references.
- MLflow T1
Databricks-incubated open platform for ML lifecycle — tracking, projects, models, model registry. Standard ML-ops baseline. MLflow 3.0 (2024) added LLM-eval features.
- AWS SageMaker T1
AWS's managed ML platform — Studio, Training, HyperPod (large-scale clusters), Endpoints. Industry-standard for enterprise AWS-hosted training.
- Weights & Biases T1
Experiment-tracking and ML-ops platform (metrics, artifacts, sweeps, Weave tracing/evals). Acquired by CoreWeave (completed 2025-05-05, ~$1.7B); now part of CoreWeave Forge.
- Comet ML T2
ML experiment tracking + LLM evaluation platform (Opik for LLM eval). Comet competes head-to-head with Weights & Biases.
- Azure Machine Learning T1
Microsoft Azure's managed ML platform — pipelines, AutoML, Designer, prompt flow (LLM). Heavy integration with Azure OpenAI and Azure AI Studio.
- LoRA T3
Microsoft Research's Low-Rank Adapters method — trains rank-r matrices added to attention weights; 10000x parameter reduction. Foundation of all adapter-style fine-tuning.
Sources (15 cited facts, 3 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Programmatic data labelling vendor
- What it does & what's distinct AI data company spun out of Stanford Snorkel weak-supervision research; now sells expert… vendor
- Claims / benefits $135M Series C (2021) at $1B; growing into LLM/RLHF data. vendor
- Created 2019 third-party
- Latest release v0.10.0 (2024-02-27) — snorkel (OSS library) registry
- License proprietary; Snorkel OSS library Apache-2.0 repo
- GitHub snorkel-team/snorkel — ~6.0k stars, last commit 2026-10 repo
- Funding $350M Series E 2026-09-22 at $3.5B valuation (co-led by Insight Partners and S32, Additi… vendor
- Customers / scale BMW, Pixar, Bayer, Wayfair, US DoD, JPMorgan; weak-supervision platform Snorkel Flow. vendor
- HQ Redwood City, CA, USA (Palo Alto in some filings). third-party
- Founders / pedigree Alex Ratner (CEO), Braden Hancock, Henry Ehrenberg, Jared Dunnmon, Paroma Varma; spinout… vendor
- licensing-bucket commercial repo
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup model-infra repo
- developer-activity-opendigger {"activity":null,"as_of":"2024-09","openrank_12mo":1.19,"openrank_current":0.43,"partici… third-party
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-27
- License first recorded as “proprietary; Snorkel OSS library Apache-2.0” source
- Latest release first recorded as “v0.10.0 (2024-02-27) — snorkel (OSS library)” source
- Funding / ownership “$135M total raised through Series C 2021-08 ($85M, Addition led; $1B valuation).” → “$350M Series E 2026-09-22 at $3.5B valuation (co-led by Insight Partners and S32, Addition participating)” source