High-quality training data and professional annotation services for machine learning teams building the next generation of AI models.
TRUSTED BY LEADING AI COMPANIES
LinkMind provides end-to-end data solutions for AI teams. From data collection to annotation and quality assurance, we handle the entire data pipeline so you can focus on building great models.
Trusted by leading AI companies to deliver high-precision datasets at scale, on time, every time.
Explore PlatformProfessional multi-modal annotation services powered by AI-assisted tools and a global expert workforce of 100,000+ trained annotators.
Support for images, video, text, audio, point clouds, and more. Delivering 99%+ accuracy for your AI models across any modality.
View ServicesFrom data collection to model evaluation, we provide the complete data infrastructure for AI development.
Custom data sourcing from web, mobile, IoT, and proprietary channels. Access to diverse, high-quality data sources worldwide.
Expert workforce combined with AI-assisted tools for multi-modal annotation at 99%+ accuracy.
Multi-level review processes and automated quality checks ensuring the highest standards.
Ready-to-use datasets for speech recognition, computer vision, NLP, and other AI applications.
Powerful web-based platform supporting all major annotation types with real-time collaboration.
Preference ranking, safety alignment, red-teaming, and instruction tuning data for GPT, Claude, and other LLMs.
Comprehensive annotation capabilities across multiple modalities to power any AI application.
3D cuboid annotation, semantic segmentation, lane detection, and sensor fusion for autonomous driving and robotics.
Object detection, tracking, action recognition, semantic segmentation, and temporal annotation for computer vision AI.
Transcription, speaker diarization, and acoustic event detection for voice AI.
Named entity recognition, sentiment analysis, and text classification for language models.
Document parsing, form extraction, and handwriting recognition for document AI.
Vision-language annotation, image-text pairs, video captioning, and cross-modal data for GPT-4V, Gemini, and multimodal LLMs.
See how leading AI companies achieved breakthrough results with LinkMind.
Delivered 500K+ preference comparisons for a leading AI lab, improving their model's helpfulness score by 23%.
Annotated 2M+ point cloud frames for L4 autonomous driving, enabling safe urban navigation.
Created 1M+ image-text pairs for training a multimodal AI assistant with superior visual understanding.
Your data is protected by industry-leading security standards.
Certified security controls
Security standard certified
EU data protection ready
Healthcare data compliant
Full confidentiality
Leading AI companies rely on LinkMind for their training data needs.
"LinkMind's RLHF services helped us significantly improve our language model's alignment. The quality of preference data was exceptional."
"Their LiDAR annotation accuracy is industry-leading. We annotated 2M point cloud frames with 99.2% accuracy for our autonomous driving system."
"The multimodal annotation capabilities are outstanding. Perfect for training our vision-language models with high-quality image-text pairs."
Comprehensive multilingual data support for AI models serving global markets.
Top languages: English, Chinese (Mandarin, Cantonese), Japanese, Korean, Spanish, French, German, Arabic, Hindi, Portuguese, Russian, and more...
Talk to our team about your data needs and see how LinkMind can accelerate your AI development.