Vendor reviews
The AI training-data market, reviewed fairly.
Buyers compare providers before they license. Most of what ranks for those searches is written by the vendors themselves. These reviews are honest about where each company is — and is not — the right answer, judged on the axis this market actually turns on: rights and provenance.
Best speech data providers
Best video licensing providers
Best AI training data marketplaces
All reviews
Defined.ai
One of the older marketplaces for licensed speech and language data — broad catalog, marketplace model.
Appen
A large, long-established crowd data-collection and annotation company — scale is the story.
Scale AI
Best known for data labeling and RLHF at the frontier — a labeling/ops powerhouse more than a data licensor.
Surge AI
A newer high-quality labeling and RLHF provider — quality-of-annotator positioning.
Troveo
A video-focused licensing marketplace — scale in footage licensed from source.
Protege
A governed marketplace for AI training data, venture-backed, provenance-forward messaging.
Shaip
Healthcare-leaning data collection and annotation, plus off-the-shelf datasets.
Getty Images (AI licensing)
A stock giant running an AI-licensing program over its owned/represented catalog.