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m.nexdata.datatang.com/

Sharpen Your AI with
Better Data

Founded in 2011, Nexdata has grown to be a globally renowned AI training data service company. Nexdata owns an extensive library of off-the-shelf datasets and provides flexible data collection, annotation and curation services. Over a decade, we've empowered 10,000+ companies worldwide to enhance their AI models' performance.

Trusted by global AI Companies, Enterprises & Startups, University Research Institutes

Off-the-shelf datasets

Nexdata's own datasets cover 200,000 hours of speech recognition data, 800TB of image data, about 2 billion pieces of natural language processing (NLP) data. These ready-to-go datasets can be delivered in seconds, quickly improve the accuracy of AI models.

Computer Vision Datasets

NLU Datasets

Speech Synthesis Datasets

OCR Datasets

Speech Recognition Datasets

LLM Datasets

Data Service

Nexdata has global data processing factories and more than 20,000 professional annotators, supporting on-demand data annotation services, such as speech, image, video, point cloud and text, etc.

3D Point Cloud Data Service

Street View Data Service

Behavior Recognition Data Service

OCR Data Service

Identity Recognition Data Service

Speech Synthesis Data Service

Speech Recognition Data Service

Multimodal Data Service

Annotation Platform

Our annotation platform supports human-machine interaction and semi-automatic labeling, assiting you in effectively building more competitive AI products.

3D Point Cloud Annotation Tool

Speech Annotation Tool

Remote Sensing Annotation Tool

Video Annotation Tool

2D Image Annotation Tool

Text Annotation Tool

Generative AI Data Service

No matter your current stage in Generative AI development,
our data services aims to accelerate the growth of your AI initiatives.

Fine-Tuning

Generate high-quality supervised fine-tuning data for model optimization with hints and output annotations.

RLHF

Manually ranking multiple outputs generated by the SFT-trained model according to the rules provided by the client, or providing multi-factor scoring.

Red Teaming

Train and validate models through drafting various adversarial attacks, such as exploratory or potentially harmful questions.

Autonomous Vehicles Data Service

Nexdata provides data covers from in-cabin sensing to outside cabin perception.
Satisfy all your needs for autonomous vehicles solution.

In-Cabin Sensing Datasets

Nexdata have over 1000 off-the-shelf datasets ready to be delivered in seconds, we also provides data customization services for in-cabin applications, such as head pose, gaze, facial expressions understanding, gestures detection and etc,.

LiDAR Data Labeling

We offers advanced and tailored data solutions specifically designed for ADAS/AV, including 3d point data annotation, data collection and a privatized deployable data labeling platform.