Best Data Labeling & Training Data AI Tools

As of 2026-08, AlphaMoat tracks 166 AI websites tagged Data Labeling & Training Data. The most visited is Hugging Face with 31.2M monthly visits (+10.7% MoM). Ranked by latest monthly traffic, updated monthly.

#ProductCompanyIndustryVisitsMoM

1

Hugging FaceData Labeling & Training Data+2

An open, collaborative community platform for models, datasets, and AI apps.

Hugging FaceGeneral AI31.2M+10.7%

2

OutlierData Labeling & Training Data

Let professionals work freelance on AI training

Smart EcosystemsGeneral AI11.5M-9.1%

3

KaggleData Labeling & Training Data+2

Kaggle 对应 kaggle.com。Discover what actually works in AI. Join millions of builders, researchers, and labs evaluating agents, models, and frontier technology through crowdsourced benchmarks, competitions, and hackathons.

KaggleNews & Analytics10.5M-6.1%

4

TolokaAI Observability & Eval+1

A training-data platform combining human expertise and technology for agents and LLMs.

TolokaProgramming2.4M-9.2%

5

clickworkerData Labeling & Training Data

Deliver scalable data services via a global crowdsourced workforce.

clickworkerGeneral AI1.9M-10.7%

6

DeepgramAI Game Development+1

A doodle game that helps train a public image-recognition neural network

GoogleProgramming1.5M+0.7%

7

Tafi AIData Labeling & Training DataAI 3D+1

用 AI 生成 3D 模型的创作工具

Daz ProductionsGeneral AI1.5M+1.1%

8

Design ArenaAI Observability & Eval+2

An arena where user votes seat design models.

Design ArenaGeneral AI1.3M-11.3%

9

OpentrainData Labeling & Training Data

Platform connecting AI companies with professional trainers, annotators, and domain experts

OpenTrain AIGeneral AI915.4K+16.1%

10

AfterQueryData Labeling & Training Data

Turn professionals' reasoning processes into high-quality training data.

AfterQueryGeneral AI848.4K+0.7%

11

LabelboxData Labeling & Training Data

Reinforcement learning data, environments and custom evals for frontier models

LabelboxGeneral AI803.7K+30.5%

12

TranscribeMeData Labeling & Training Data+1

Transcription, translation, and data-labeling services combining AI with human review.

TranscribeMeAudio764.5K-12.8%

13

UltralyticsData Labeling & Training Data+1

From data annotation and YOLO training to global model deployment

UltralyticsGeneral AI745.2K-24.6%

14

AppenData Labeling & Training Data

A service platform providing expert-validated training data and human evaluation for frontier models.

AppenGeneral AI745.1K-19.1%

15

InvisibleTechnologiesInc.Data Labeling & Training Data

Turn complex data and models into trainable, scalable AI systems.

Invisible TechnologiesGeneral AI605.0K-25.1%

16

SuperAnnotateData Labeling & Training Data

Platform for data labeling, evaluation, and expert collaboration for multimodal models.

SuperAnnotateGeneral AI584.9K+0.6%

17

ScaleAI Observability & Eval+1

Provides training data, evaluation, and full-stack tech to build reliable intelligent systems

ScaleGeneral AI569.9K-4.3%

18

TeneoData Labeling & Training Data+1

Unlocking public social media data for the agent economy and rewarding contributors

TeneoGeneral AI325.8K+6.1%

19

WirestockData Labeling & Training Data+1

Connect creators with multimodal training-data projects and pay them out.

WirestockGeneral AI296.4K-16.2%

20

ArzuleData Labeling & Training Data+1

Licensed, compliance-authorized multimodal training data for frontier AI models.

DatoricGeneral AI294.7K+3425.7%

21

EncordData Labeling & Training Data+1

Manage, curate, and align multimodal data for physical AI.

EncordGeneral AI251.9K-3.1%

22

surgehq.aiData Labeling & Training Data

Train frontier AI models with expert human data and reinforcement learning environments.

Surge AIGeneral AI243.3K+8.3%

23

Defined.aiData Labeling & Training Data

Source and deliver traceable, high-quality training data.

Defined.aiGeneral AI200.8K+5.2%

24

Label StudioAI Observability & Eval+1

Open-source labeling for multimodal training data, agent traces, and LLM evaluation.

HumanSignalGeneral AI185.6K-3.7%

25

Snorkel AIAI Observability & Eval+1

Data development and evaluation infrastructure for frontier LLMs.

Snorkel AIGeneral AI185.1K-6.9%

26

NyckelData Labeling & Training Data+1

Train custom classification models fast without ML experience.

NyckelGeneral AI145.7K-3.7%

27

prolific.coData Labeling & Training Data+1

Recruit real human participants for research and AI projects and obtain high-quality data

ProlificGeneral AI143.4K-44.5%

28

CentificData Labeling & Training Data+1

AI data and training-services platform for enterprises.

CentificIndustry Services143.2K-21.7%

29

PrismaXData Labeling & Training Data+1

Data service layer for physical AI

PrismaXIndustry Services115.0K-0.4%

30

Voxel51AI Observability & Eval+2

A multimodal data curation platform for physical AI

Voxel51General AI108.3K-17.7%

31

LabellerrData Labeling & Training Data

Scalable data labeling and image annotation services for AI teams.

Tensor MaticsGeneral AI106.6K-21.2%

32

YourpersonalaiAI Observability & Eval+2

Enterprise-grade AI data and implementation services covering multimodal collection, labeling, and evaluation.

YPAIGeneral AI79.8K+7.2%

33

UnstructuredData Labeling & Training Data+1

Unstructured-data preprocessing platform for generative AI

UnstructuredNews & Analytics72.9K-21.2%

34

Tonic Fabricate Data AgentAI Testing & QA+1

Generate synthetic test data close to production.

Tonic.aiGeneral AI69.2K-5.1%

35

LabelyourdataData Labeling & Training Data

Data labeling company providing expert-annotated datasets for AI teams

Label Your DataGeneral AI65.3K-10%

36

HasDataAI Browser / Web Automation+2

Reliably converts web pages and search results to JSON or Markdown.

HasDataProgramming51.0K-6.9%

37

整数智能Data Labeling & Training Data

An AI data-labeling and engineering platform.

整数智能Industry Services48.3K-25%

38

Meta AREAI Observability & Eval+3

A dynamic simulation platform for training and evaluating AI agents.

MetaGeneral AI47.5K-51.2%

39

PangeanicData Labeling & Training Data+1

Data and model alignment services for multilingual AI systems

PangeanicGeneral AI46.6K-14.7%

40

Kili TechnologyData Labeling & Training Data

Build high-quality, trustworthy training data for AI models.

Kili TechnologyGeneral AI45.8K-14.9%

41

InnovatianaData Labeling & Training Data

Data-service provider offering image, text, and voice labeling for frontier AI.

InnovatianaGeneral AI45.3K-6.5%

42

MostlyAIData Labeling & Training Data+2

Data platform generating privacy-safe synthetic data for AI innovation

MOSTLY AIGeneral AI40.9K-5.9%

43

RigydData Labeling & Training DataAI 3D+1

Rigyd — turn three-dimensional models, images, or text into SimReady assets.

RigydGeneral AI40.1K+41.3%

44

Deccan AIAI Observability & Eval+1

A platform providing data and environments for model training, evaluation, and agent deployment

Deccan AIProgramming39.0K-27.6%

45

SievedataData Labeling & Training Data

A lab providing high-quality multimodal data for frontier AI.

SieveGeneral AI38.6K+48.9%

46

MrScraperAI Browser / Web Automation+1

Scrape data from any website with AI and proxies

MrScraperProgramming38.1K-9.1%

47

DatatureData Labeling & Training Data+1

An end-to-end computer vision AI platform.

DatatureGeneral AI37.7K-19.1%

48

StrataData Labeling & Training Data+2

Klavis AI provides real tool-training environments and verifiable rewards for frontier AI labs.

Klavis AIGeneral AI35.2K-8.9%

49

DiffbotData Labeling & Training Data+2

Turn the entire public web into a structured knowledge graph

DiffbotGeneral AI35.2K-21.7%

50

VanaData Labeling & Training Data

Open data infrastructure letting users own data and port it across apps.

VanaGeneral AI32.2K-7.8%

Data month: 2026-08 · Visit figures are third-party traffic estimates aggregated monthly — best for scale and trends. Multiple domains of the same product are merged. See methodology.