Combining AI pre-annotation with a domain expert team of hundreds of people to provide you with high-precision, customized training data delivery
Data is the core fuel of AI. We have an experienced full-time annotation team, providing one-stop outsourcing services from data collection, cleaning, and multimodal annotation to RLHF, deeply empowering the autonomous driving, large model, and pan-entertainment industries.
Covering full-stack data processing needs from traditional CV to cutting-edge large models
Supports 2D/3D bounding boxes, semantic segmentation, polygons, keypoints, and 3D point cloud annotation, providing precise "vision" for autonomous driving and security models.
Provides high-quality Prompt writing, SFT instruction fine-tuning data construction, multi-turn dialogue construction, and RLHF (Reinforcement Learning from Human Feedback) ranking annotation.
Multilingual and dialect speech transcription, speaker separation, emotion annotation, and phoneme-level alignment, empowering intelligent customer service and in-car voice assistants.
Video frame extraction annotation, Multiple Object Tracking (MOT), action start/end point clipping, and behavior classification, suitable for security monitoring and short video understanding.
Complex image-text layout parsing, receipt/ID/handwriting extraction, and image-text matching scoring, empowering Multimodal Large Language Model (MLLM) training.
Security boundary assessment and annotation filtering for text and images produced by generative AI, targeting pornography, violence, bias, and values.
Reject the "data black box". We ensure that every piece of delivered data has extremely high accuracy and consistency through rigorous six-layer defense lines.
Initial review + secondary review + spot check three-layer quality control
Combination of domain experts + senior annotators
Kappa coefficient > 0.85, ensuring stable annotation
AI pre-annotation acceleration, precise human validation
Annotation progress and quality metrics visible in real-time
Supports version rollback and incremental updates
With experience in processing tens of billions of data points, we have accumulated rich domain knowledge in core tracks such as autonomous driving, healthcare, and finance
LiDAR 3D point clouds, lane lines, and panoramic semantic segmentation, providing a secure data foundation for L4 autonomous driving
CT/MRI slice lesion delineation, ultrasound polygon segmentation, supported by a background of hundreds of medical consultants from top-tier hospitals
Long research report entity extraction, multimodal ID OCR cleaning, contract key element extraction, and receipt automated archiving
Character dialogue fine-tuning data, high-quality SFT instruction set writing, AIGC anime and virtual digital human corpus annotation
ReID cross-camera tracking, night/low-light facial and abnormal behavior detection, supporting high-concurrency monitoring stream interception
Extremely small surface defect (scratches, cracks) segmentation annotation, production line component classification, assisting 3C/semiconductor yield detection
We understand the sensitivity of data privacy and strictly follow the highest industry security standards for physical and logical data isolation
Supports customer private cloud deployment and physical disconnected zone operations
Irreversible automated mosaic for faces, license plates, and privacy fields
Based on a strict RBAC model, ensuring data is "usable but invisible"
Thorough shredding and erasure of original data immediately after project acceptance
Standardized operation process to ensure efficient and high-quality delivery
Clarify annotation types, specification requirements, and delivery standards
Formulate annotation specifications, quality inspection standards, and project plans
Small-batch trial annotation to verify the rationality of specifications
Large-scale parallel annotation with daily delivery
Triple quality inspection to ensure quality meets standards
Data packaged for delivery, project summary, and review
Frequently Asked Questions about Data Annotation Services
Get a free trial annotation to experience our annotation quality and service efficiency