Find AI datasets+Order premium data annotation
Defined.ai is a marketplace: you license ready-made datasets, speech and multilingual especially, or commission collection. Dataset Finder points you to existing datasets under their own licences, with a licence check on each card, and lets you order custom data when nothing fits.
Facts about Defined.ai come from its own website and other public sources (see sources).
Defined.ai licenses its own catalogue. Dataset Finder finds the open datasets you can already use, and has the rest built and annotated to your spec by a managed team.
Describe your use case in plain language and get a ranked shortlist from tens of thousands of curated datasets.
When nothing fits, order custom annotation in the same app. Your data is labelled by trained annotators and domain specialists managed by Innovatiana, not an open crowd.
Both live in one workspace: what you found, what you ordered and which model it trained are recorded per project.
| Criterion | Dataset FinderFind + annotate | Defined.ai |
|---|---|---|
| What it is | One place to find and order AI training data: dataset search over a curated catalogue, dataset cards with automated analysis, premium data annotation and labelling services, and a project workspace | AI data marketplace for licensing off-the-shelf datasets, plus custom collection, annotation and evaluation |
| Where you start | Search what already exists: natural-language search across tens of thousands of curated datasets (metadata only; you download from the source) | License a ready-made dataset, or commission collection |
| Who does the labelling | Trained annotators and domain specialists managed by Innovatiana, not an open crowd, with a dedicated Data Labeling Manager | 1.6M+ contributors in 150+ countries through its Neevo platform (Defined.ai says) |
| Pricing | Free €0 · Startup €9.90/mo · Pro €29.90/mo (or €99 / €299 a year). Custom data paid in credits, no set-up fee | Not published; samples and quotes on request |
| Data types | Image, video, audio, text, multimodal and medical data; 3D point clouds; LLM fine-tuning, agent and coding data | Speech and audio, text, image, video, multimodal |
| Company | Built by Innovatiana, a data-labelling company with its own trained annotation teams | Seattle and Lisbon · founded 2015 as DefinedCrowd |
| Built for | AI teams that want to check what already exists before paying for data, then order the gaps self-serve | Teams that want licensed datasets with clear commercial rights, especially speech and multilingual |
Defined.ai sells dataset licences. Dataset Finder sends you to the source under its own licence, and adds a licence check to each card.
Defined.ai collects and annotates through a contributor network of 1.6M+ (Defined.ai says). Dataset Finder's custom data comes from trained annotators managed by Innovatiana.
Dataset Finder publishes subscription prices for search and workspace. Defined.ai's datasets are priced by quote.
Dataset Finder keeps a training-data inventory with lineage, so you can show which data went into which model.
Talk to Enterprise Sales. Innovatiana scopes high-volume and long-running annotation programmes, with custom SLAs and NDAs, delivered by the same managed teams under a dedicated Data Labeling Manager.
No. Dataset Finder catalogues and analyses datasets and links to the source. You can order custom data, which is delivered to you directly.
Each dataset card includes the licence and a licence check, so you can review the licence terms before you download.
No; samples and quotes are on request. Dataset Finder's plans are €0, €9.90 and €29.90 a month.
Yes. Alongside dataset search, Dataset Finder sells premium custom data annotation and labelling. Innovatiana's trained annotators and domain specialists, not an open crowd, produce and label the data, supervised by a dedicated Data Labeling Manager, with a calibration round, sampling reviews, inter-annotator agreement and gold-standard checks. It covers image, video, audio, text, multimodal and medical data, 3D point clouds, and LLM fine-tuning, agent and coding data. You order self-serve with credits, with no set-up fee, or through Enterprise Sales for larger projects.
No. Dataset Finder keeps each dataset's metadata and its own analysis, and sends you to the original source (Hugging Face, an academic page, a government portal) under that source's licence. The exception is custom data you order, which the team delivers to you directly.
Or read what makes Dataset Finder different.
This page compares public information as of 26 October 2026. Figures a company reports about itself are marked as such ("Defined.ai says"). Defined.ai is a trademark of its owner; this page is not affiliated with or endorsed by Defined.ai. Spotted something out of date? Email sales@innovatiana.com.
Discover tens of thousands of curated AI datasets, order custom training data, and turn fragmented data pipelines into production-ready AI assets, all in one workspace.