Scale AI vs Snorkel AI

Scale AI — Infrastructure · Private · $29B valuation · 3 of 3 figures sourced  |  Snorkel AI — Application · Private · $1.3B valuation · 4 of 4 figures sourced

Relationship

Contrary's business breakdown of Snorkel AI names Scale AI as a direct competitor in the training-data platform market; both companies' flagship data platforms (Snorkel Flow, Scale Data Engine) carry the train-a-model need.

1 of 4 capabilitiesShared product typeSmaller scaleSourced competitorTrain or fine-tune a model

1 of 4 capabilities — Shares data labelling.

Ludbee capability tags · from the product records

Shared product type — Both ship data service and platform.

Ludbee product records

Smaller scale — Snorkel AI: $1.3B valuation, against Scale AI's $29B valuation.

Ludbee scale figures · valuation, market cap or revenue estimate

Sourced competitor — “Scale AI: Scale AI, founded in 2016, is another data platform for AI, providing training data for machine learning teams”

research.contrary.com · checked 2026-09-19

Train or fine-tune a model — Rivals on this job — Adapt a base model to a domain, or train one from scratch — the platforms, capacity and tooling that job needs.

Ludbee needs vocabulary · the scope on the sourced edge

Aligned comparison

FieldScale AISnorkel AI
Valuation$29B$1.3B Snorkel AI has 22× smaller
Employees1,3001,000 Snorkel AI has 23% fewer
Founded20162019 3 yrs later
StatusPrivatePrivate match
CategoryInfrastructureApplication
Stack layerData service, PlatformAgent platform, Data service, Platform
HeadquartersSan Francisco, USARedwood City, USA

Capability overlap

Shared · 1

Data labelling

Not verified for Snorkel AI · 3

Data analysisEvaluation and observabilityKnowledge retrieval

Recorded for Scale AI. Snorkel AI’s product records say nothing either way — a missing record is not a missing capability.

Not verified for Scale AI · 2

Agent orchestrationModel training

Recorded for Snorkel AI. Scale AI’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Hand-checked pairing

Scale AI

Platform

Scale DonovanPlatform

AI platform for defence and intelligence users, for searching, summarising and reasoning over operational data.

Scale GenAI PortfolioPlatform

Platform for building and evaluating enterprise generative-AI applications against a customer's own data.

Data service

Scale Data EngineData service

Data labelling and curation service producing training and evaluation sets for AI models.

Snorkel AI

Platform

Snorkel FlowPlatform

Data-development platform where teams write programmatic labeling functions and use AI-assisted labeling to build and refine training data for machine learning and LLM systems, instead of hand-labeling manually.

Data service

Snorkel Custom Data DevelopmentData service

Bespoke dataset, environment and benchmark development for organizations with specialized failure modes existing datasets don't cover.

Snorkel Data SeriesData service

Off-the-shelf curriculum-structured training/eval datasets for frontier-model task areas (terminal coding, software engineering, enterprise workflows, computer use, scientific research), with rubrics and difficulty tiers built in.

No counterpart

Snorkel AI sells these in a stack layer with no product recorded for Scale AI yet — nothing on the other side to compare them against.

Agent platform

Snorkel Specialized AgentsAgent platform

Develops specialized AI agents for enterprise tasks, built on Snorkel's data-development stack.

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