Data Nexus | AI Training Datasets

CURATED DATASETS

Discover our collection of high-quality, annotated datasets for AI training

IMAGE RECOGNITION

1.2M labeled images across 1000 categories

COMPUTER VISION CLASSIFICATION RESEARCH

NATURAL LANGUAGE

5.7GB of annotated text data for NLP tasks

NLP TEXT CLASSIFICATION ENTITIES

MEDICAL IMAGING

250,000 anonymized DICOM scans with annotations

HEALTHCARE DICOM SEGMENTATION

AUTONOMOUS DRIVING

10,000 hours of annotated driving footage

LIDAR OBJECT DETECTION REALTIME

FINANCIAL TIME SERIES

20 years of global market data with sentiment

TIME SERIES FORECASTING QUANT

SPEECH RECOGNITION

50,000 hours of multilingual speech data

AUDIO SPEECH-TO-TEXT MULTILINGUAL

CONTRIBUTE TO THE NEXUS

Share your datasets with the AI research community. Our platform ensures proper attribution, version control, and secure storage for your valuable data.

SIMPLE UPLOAD

Drag and drop your files or select from your device. We support all major data formats with automatic validation.

SECURE STORAGE

Encrypted at rest and in transit with strict access controls. Choose between public or private sharing.

QUALITY CONTROL

Our automated systems check for consistency, while human reviewers verify metadata and annotations.

CITATION READY

Automatic DOI generation and standardized citation formats ensure you get proper credit.

PLATFORM FEATURES

Designed for researchers, by researchers

VERSION CONTROL

Track changes across dataset versions with full diff visualization. Roll back to previous versions or branch for experimental modifications.

DATA VISUALIZATION

Interactive tools to explore distributions, correlations, and anomalies in your data before download. Built-in Jupyter notebook integration.

ADVANCED FILTERS

Find exactly what you need with multidimensional filtering by data type, license, annotation quality, collection date, and more.

COMMUNITY IMPACT

DATASETS INDEXED

RESEARCH INSTITUTIONS

DOWNLOADS

CONTRIBUTORS

JOIN OUR RESEARCH COMMUNITY

Connect with thousands of AI researchers, dataset creators, and machine learning engineers. Share insights, collaborate on projects, and accelerate your research.

POWERFUL API ACCESS

Integrate our datasets directly into your workflows with our comprehensive REST API and Python client library.

PYTHON CLIENT EXAMPLE

from datanexus import Client

# Initialize client with your API key
client = Client(api_key="your_api_key_here")

# Search for image datasets with >1000 samples
datasets = client.search(
    type="image",
    min_samples=1000,
    license="cc-by"
)

# Stream dataset directly to your model
for batch in datasets[0].stream(batch_size=32):
    model.train(batch)

UNLOCK INTELLIGENCE—ONE DATASET AT A TIME