Elevate AI performance with Appen’s Datasets
From 800+ off-the-shelf datasets to custom data solutions, we help your artificial intelligence dataset production start smarter and scale faster.
Trusted partner in AI innovation for over 28 years
Find the Perfect Dataset for Your AI Project
Explore 800+ off-the-shelf dataset or design your own custom dataset. From quick deployment to precision tuning, we’ve got your AI data covered.
- Off-the-Shelf Datasets: High-quality, ready-to-use AI data to fine-tune and enhance your models.
- Custom Datasets: Purpose-built datasets tailored to your specific goals and unique use cases.
Explore Appen’s Off-the-Shelf Datasets
Fuel your AI with high-quality datasets—from massive multilingual text collections to authentic audio and more. Each dataset is designed to accelerate AI model training, testing, and fine-tuning.
Datasets
Languages
Countries
Hours
Images
Words
Featured Datasets
Explore Appen’s newest collection of curated artificial intelligence datasets.
Off-the-Shelf Datasets
Discover our high-quality OTS datasets for machine learning and artificial intelligence.
Custom Dataset Production Service
We design custom datasets fine-tuned to your specific AI needs, enabling superior model performance over generic training data.
Quality You Can Trust
Delivering a 100% pass rate across 100+ projects through rigorous data validation and human-in-the-loop precision.
Save More, Scale Faster
Reduce dataset production costs by up to 70% compared to traditional collection and annotation methods.
Diverse Data Coverage
Access every data type imaginable—text, audio, image, video, multimodal, and embodied AI—in over 80 languages and dialects.
End-to-End Dataset Production Process
Customer Success Stories
Multilingual Audio Datasets for Speech AI
A global technology leader partnered with Appen to build a multilingual audio dataset of over 20,000 hours across 7+ languages for speech model development.
By leveraging Appen’s worldwide contributor network and dedicated language-specific project teams, the client received linguistically diverse, accurately annotated data—delivered on time and aligned with rigorous quality standards.
Image Processing Datasets for Visual AI
To enhance image editing algorithms in generation, style transfer, and restoration, a top internet company relied on Appen’s large-scale image dataset.
With 100K+ Photoshop image pairs spanning real-world and commercial use cases, Appen helped overcome data bottlenecks and boost the model’s adaptability to complex visual scenarios.
Why Appen
Empowering the world’s leading AI companies with high-quality, scalable, and diverse data solutions.
Global AI Expertise
Our team of seasoned dataset professionals has successfully delivered over 100 large-scale AI data projects, combining technical excellence with deep domain expertise.
Advanced Data Platform
Appen’s proprietary platform streamlines dataset production, supporting complex multimodal requirements across text, audio, image, and video.
Quality Without Compromise
We maintain a 100% success rate through end-to-end quality assurance—from data collection to annotation and validation.
Speed and Scale
With global resources and expert management, we ensure rapid dataset delivery tailored to your project’s unique needs.
Build Smarter with the Right Data
Power your AI innovation with large-scale, high-quality datasets customized for your unique needs.