Data Annotation
Transform your raw, ambiguous data into a refined, contextually-enriched training dataset with our diverse global workforce and advanced data labeling platform, Ground Truth Studio.






Leverage decades of labeling expertise
With over 20 years of experience delivering more than two billion labels annually, we are your ideal partners for data labeling projects of all scales and any complexity.
Specialized global annotation workforce
Diverse in demographics, skills and expertise, our AI Community includes labelers, linguists and subject-matter experts across different domains, vital for capturing representative data.
AI-assisted labeling and quality control
Ground Truth Studio provides sophisticated multimodal data annotation and features automated labeling, seamless project management and configurable workflows.
Multimodal data annotation
We provide diverse, accurate datasets at scale, across all data types.

3D Sensor Fusion Annotation
Elevate your 3D computer vision models to new heights of accuracy with our multi-sensor annotation services that encompass object classification, 3D object tracking, 2D-3D linking, bird's-eye-view and point cloud segmentation.

Image/Video Annotation
Extract rich information from visual content, including precise object detection, detailed segmentation, landmark recognition and accurate movement prediction across various domains and applications.

Audio Annotation
Craft a digital map of your audio with our AI-powered services. We empower your models to understand spoken language through features like speech recognition, speaker identification, detailed transcription, sentiment recognition, diarization and audio segmentation.

Text Annotation
Our text labeling services handle a vast range of scripts and languages, ensuring seamless integration for natural language processing, document processing, chatbots, transcripts and more. We offer a suite of powerful features, including classification, named entity recognition, keyphrase extraction, intent classification, question answering, sentiment analysis and text summarization.

Explore our success stories
Meeting the complex data annotation requirements of a unique non-profit organization
93%Annotation accuracy rate
Creating annotation work opportunities through impact sourcing
100%Recall
88.89%Precision (quality)
Building a multilingual dataset with high-quality data collection and annotation
3.5Mlanguage tasks
660Klanguage prompts
Meeting the complex data annotation requirements of a unique non-profit organization
93%Annotation accuracy rate
Creating annotation work opportunities through impact sourcing
100%Recall
88.89%Precision (quality)
Building a multilingual dataset with high-quality data collection and annotation
3.5Mlanguage tasks
660Klanguage prompts
- 500+Annotation languages & dialects
- 2B+Labels annually
- 1M+Diverse global AI Community of annotators and linguists
Celebrating excellence
Recognized as a Leader in the Everest Group Data Annotation and Labeling (DAL) Solutions for AI/ML PEAK Matrix® Assessment 2024 and the IDC MarketScape: Worldwide Data Labeling Software 2023 Vendor Assessment.
Upgrade your AI
Partner with our AI experts to customize the exact project to advance your machine learning needs.
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