
Get 25% off Diverse, Ready-to-use Speech Datasets for AI
Build your AI Model Using High-performance, Bias-reducing Speech & Audio Datasets with Built-in Compliance. Offer valid until May 30, 2025.
200K+
HOURS OF SPEECH
3M+
MUSIC TRACKS & SOUND EFFECTS
120+
MARKETS COVERED
Defined.ai is Trusted by Global AI Leaders
Reduce Word Error Rate from 18% to just 1.7%.
With real, representative speech data.
Most Popular Speech Datasets
Limited time: 25% off all off-the-shelf speech datasets.
Talk to our team today to explore every dataset on offer.
Why Defined.ai?
We have the world’s largest data marketplace for AI training, projects and tools. Our ready-to-use speech and voice datasets improve performance, reduce bias and ensure compliance—now 25% off until May 30.
Performance
High-quality deep learning datasets, with diverse languages and built for real-world AI projects like speech recognition and natural language processing.
Bias Reduction
Machine learning training data for AI fine tuning curated for inclusion—generated by real people across languages, locales and domains for voice recognition projects.
Speed
Instant access to off-the-shelf speech training data via our AI Marketplace and customizable AI training workflows.
Compliance
Training data for AI ensuring legal standards, privacy, ethical sourcing and fully-documented consent for use.
Our data marketplace in 3 easy steps
1. Browse the Datasets
Use our advanced, dynamic filters to explore our vast collection by the type of data you’re looking for, your industry or use case and global languages.
2. Request a Free Sample
Validate fit before you commit: request a sample directly from our data marketplace or by contacting us.
3. Start Building
All of our datasets are AI-ready so you can start building and fine-tuning your models immediately.
“Defined.ai provides access to our premium, commercially-safe visual content to help create high-quality GenAI solutions that respect creators’ rights and deliver exceptional performance.”
Peter Orlowsky, SVP of Global Strategic Partnerships at Getty Images