OpenTopography provides dataset search and access to topographic data, including lidar datasets and related map visualizations.
Dataset
Nexdata
Nexdata offers off-the-shelf training datasets and data collection and annotation services across areas including speech, vision, and language.
About Nexdata
Nexdata is an AI training data company. It offers off-the-shelf datasets and data collection, annotation, and curation services. According to its homepage, the company was founded in 2011. Its catalog covers speech recognition and synthesis, computer vision, large language models, OCR, natural language understanding, and embodied AI. Data services include 3D point cloud data, street view data, behavior and identity recognition data, and multimodal data.
The homepage lists generative AI, autonomous vehicles, AR/VR, conversational AI, smart home, retail, and healthcare as target industries. The site is a web platform. It is not open source, and pricing is listed as unknown.
Key features
- Off-the-shelf datasets for speech, vision, language, OCR, and NLU
- Custom data collection, annotation, and curation services
- 3D point cloud and street view data services
- Egocentric video dataset with 4K stereo video and 76-point pose annotations
- 1.51 million annotated image editing pairs for generative AI training
- Agent trajectory dataset with multi-turn reasoning and tool-calling chains
Best for: Teams building or evaluating AI models that need ready-made or custom training data, such as developers in generative AI, automotive, retail, or robotics.
Good for
- Lists a broad catalog of datasets across several AI modalities
- Offers both existing datasets and custom collection and annotation services
- Publishes dataset descriptions with specific content details such as sample counts and annotation types
Watch out for
- Pricing is not stated (listed as unknown)
- Not open source
Nexdata at a glance
- Official website
- nexdata.ai
- Category
- Research & Data › Machine Learning Datasets
- Type
- Dataset
- Platforms
- Web
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Nexdata FAQ
What types of data does Nexdata list?
The homepage lists datasets for speech recognition, speech synthesis, computer vision, OCR, LLMs, NLU, and pronunciation dictionaries. It also lists data services for 3D point cloud, street view, behavior recognition, identity recognition, and multimodal data.
How do I request a custom data project?
The contact form asks for a name, a phone number, a company name, a company email, and a data requirement. The data requirement must be at least 5 words and cannot be only numbers.
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