Best Data Labeling & Training Data AI Tools

As of October 2026, AlphaMoat tracks 167 AI websites tagged Data Labeling & Training Data. The most visited is Hugging Face with 34.8M monthly visits (+11.4% MoM). Ranked by latest monthly traffic, updated monthly.

#	Product	Company	Industry	Visits	MoM
1	Hugging FaceData Labeling & Training Data+2 An open collaboration platform for hosting models, datasets, and AI applications.	Hugging Face	General AI	34.8M	+11.4%
2	KaggleData Labeling & Training Data+2 A community platform for data-science practice, collaboration, and machine-learning evaluation	Kaggle	News & Analytics	12.0M	+6.3%
3	OutlierData Labeling & Training Data Write training questions and assess model answers with specialist judgment	Smart Ecosystems	General AI	10.4M	+7.6%
4	TolokaAI Observability & Eval+1 A training-data platform combining human expertise and technology for agents and LLMs.	Toloka	General AI	2.3M	+1.6%
5	clickworkerData Labeling & Training Data Deliver scalable data services via a global crowdsourced workforce.	clickworker	General AI	1.9M	+0.5%
6	InvisibleTechnologiesInc.Data Labeling & Training Data Turn complex data and models into trainable, scalable AI systems	Invisible Technologies	General AI	1.5M	+49.8%
7	OpentrainData Labeling & Training Data Platform connecting AI companies with professional trainers, annotators, and domain experts	OpenTrain AI	General AI	1.5M	+11.2%
8	Design ArenaAI Observability & Eval+2 A competitive platform for generating and comparing designs from several AI models	Design Arena	General AI	949.5K	-13.2%
9	UltralyticsData Labeling & Training Data+1 From data annotation and YOLO training to global model deployment	Ultralytics	General AI	793.4K	+8.7%
10	LabelboxData Labeling & Training Data Reinforcement learning data, environments and custom evals for frontier models	Labelbox	General AI	762.8K	-22.8%
11	TranscribeMeData Labeling & Training Data+1 Transcription, translation, and data-labeling services combining AI with human review.	TranscribeMe	Audio	713.3K	-7.6%
12	AppenData Labeling & Training Data A service platform providing expert-validated training data and human evaluation for frontier models.	Appen	General AI	665.8K	+0.2%
13	ScaleAI Observability & Eval+1 Provides training data, evaluation, and full-stack tech to build reliable intelligent systems	Scale	General AI	616.9K	+12.5%
14	SuperAnnotateData Labeling & Training Data Platform for data labeling, evaluation, and expert collaboration for multimodal models.	SuperAnnotate	General AI	386.0K	+37.4%
15	Surge AIData Labeling & Training Data Provide professional data and reinforcement learning environments for agent training	Surge AI	General AI	245.1K	+6.6%
16	EncordData Labeling & Training Data+1 Manage, curate, and align multimodal data for physical AI.	Encord	General AI	244.2K	+9.4%
17	WirestockData Labeling & Training Data+1 Connect creators with multimodal training-data projects and pay them out.	Wirestock	General AI	167.2K	+12.9%
18	TeneoData Labeling & Training Data+1 Unlocking public social media data for the agent economy and rewarding contributors	Teneo	General AI	158.5K	-1.2%
19	Defined.aiData Labeling & Training Data Source and deliver traceable, high-quality training data.	Defined.ai	General AI	146.3K	-21%
20	Snorkel AIAI Observability & Eval+1 Data development and evaluation infrastructure for frontier LLMs.	Snorkel AI	General AI	143.7K	-21.3%
21	Label StudioAI Observability & Eval+1 Open-source labeling for multimodal training data, agent traces, and LLM evaluation.	HumanSignal	General AI	137.2K	-16.1%
22	YourpersonalaiAI Observability & Eval+2 Enterprise-grade AI data and implementation services covering multimodal collection, labeling, and evaluation.	YPAI	General AI	135.7K	+73.5%
23	Voxel51AI Observability & Eval+2 A multimodal data curation platform for physical AI	Voxel51	General AI	117.7K	-8.2%
24	NyckelData Labeling & Training Data+1 Train custom classification models fast without ML experience.	Nyckel	General AI	115.9K	-3.6%
25	Meta AREAI Observability & Eval+3 A dynamic simulation platform for training and evaluating AI agents.	Meta	General AI	84.7K	+30.1%
26	CentificData Labeling & Training Data+1 AI data and training-services platform for enterprises.	Centific	General AI	79.3K	-42.4%
27	ProlificData Labeling & Training Data+1 Recruit real human participants for research and AI projects and obtain high-quality data	Prolific	General AI	77.8K	-24%
28	Deccan AIAI Observability & Eval+1 A platform providing data and environments for model training, evaluation, and agent deployment	Deccan AI	Programming	73.4K	+128.6%
29	PrismaXData Labeling & Training Data+1 Data service layer for physical AI	PrismaX	General AI	72.4K	-19.1%
30	LabellerrData Labeling & Training Data Scalable data labeling and image annotation services for AI teams.	Tensor Matics	General AI	70.8K	-17.1%
31	ArzuleData Labeling & Training Data+1 Licensed, compliance-authorized multimodal training data for frontier AI models.	Datoric	General AI	54.6K	-74.3%
32	HUDAI Observability & Eval+1 Build reinforcement learning environments and evaluate specialized agents	HUD	General AI	52.8K	+23.9%
33	HasDataAI Browser / Web Automation+2 Reliably converts web pages and search results to JSON or Markdown.	HasData	Programming	51.8K	-12.9%
34	InnovatianaData Labeling & Training Data Data-service provider offering image, text, and voice labeling for frontier AI.	Innovatiana	General AI	45.8K	+14.9%
35	Tonic Fabricate Data AgentAI Testing & QA+1 Generate synthetic test data close to production.	Tonic.ai	General AI	45.3K	-24.6%
36	LabelyourdataData Labeling & Training Data Data labeling company providing expert-annotated datasets for AI teams	Label Your Data	General AI	43.2K	-15.2%
37	TroveoData Labeling & Training Data Real-world data platform for frontier AI labs	Troveo	General AI	36.8K	+52.6%
38	AdzzatData Labeling & Training Data+1 Connect AI engineers with remote training jobs.	Adzzat	Industry Services	36.8K	+579.4%
39	RigydData Labeling & Training DataAI 3D+1 Rigyd — turn three-dimensional models, images, or text into SimReady assets.	Rigyd	General AI	33.6K	+21.6%
40	PangeanicData Labeling & Training Data+1 Data and model alignment services for multilingual AI systems	Pangeanic	General AI	32.8K	-9.9%
41	Kili TechnologyData Labeling & Training Data Build high-quality, trustworthy training data for AI models.	Kili Technology	General AI	31.2K	-4.9%
42	MostlyAIData Labeling & Training Data+2 Data platform generating privacy-safe synthetic data for AI innovation	MOSTLY AI	General AI	29.1K	-6.7%
43	ProtegeData Labeling & Training Data Real-world data platform connecting data holders with AI builders.	Protege	Programming	27.9K	+12.7%
44	Perle AIData Labeling & Training Data Expert-labeled data for frontier models	Perle AI	Other Industries	26.4K	-2.4%
45	Aria Everyday ActivitiesData Labeling & Training Data+1 A first-person everyday activity dataset from Project Aria	Aria Gen 2	General AI	26.1K	-22.8%
46	DatatureData Labeling & Training Data+1 An end-to-end computer vision AI platform.	Datature	General AI	24.5K	-23.2%
47	DiffbotData Labeling & Training Data+2 Turn the entire public web into a structured knowledge graph	Diffbot	General AI	21.9K	-33.1%
48	SourceBaeAI Observability & Eval+1 Platform connecting enterprises with AI training and labeling domain experts	Sourcebae	General AI	21.7K	+20.1%
49	BasicAICloudData Labeling & Training Data AI data labeling service and platform.	BasicAI	General AI	21.7K	-13.1%
50	Doubleword AIData Labeling & Training Data+1 A platform for scaled open-model inference and data processing.	Doubleword AI	Programming	21.4K	-56.3%

Data month: 2026-10 · Visit figures are third-party traffic estimates aggregated monthly — best for scale and trends. Multiple domains of the same product are merged. See methodology.