Heartex
AI Annotation and Labeling
Enterprise data labeling platform built on Label Studio for managing annotation projects at scale with ML integration.
Multimodal data annotationAI assisted annotationQuality assurance and review workflows
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HumanSignal
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Data labeling platform behind Label Studio open source with enterprise features.
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Toloka
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Sapien
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Web3-powered data labeling platform using gamification to generate high-quality AI training data.
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Centaur Labs
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Medical data labeling platform engaging healthcare professionals to annotate clinical AI training datasets.
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Data labeling platform for AI teams with smart annotation tools, quality analytics, and workforce management.
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Argilla
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Open-source platform for data-centric AI focused on NLP annotation, labeling, and LLM feedback collection.
Human feedback collection for llm trainingTeam collaboration and task distributionQuality control and inter annotator agreement - 8AI Annotation and Labeling, Data Quality
Snorkel AI
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Data-centric AI platform using programmatic labeling to build training datasets without manual annotation.
Expert curated dataset developmentCalibrated expert review and adjudicationRubric based evaluation and programmatic grading - 9AI Annotation and Labeling
Hyperscale AI Africa
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African AI platform offering data labeling and annotation services for global AI companies.
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Alegion
AI Annotation and Labeling
Enterprise AI data labeling platform combining human annotators with machine learning for complex training data.
Free trialData QualityMachine Learning Platforms
