Companies / Data vendor
Prolific
"Prolific connects researchers, AI developers and product teams with real people who take part in studies online." Recorded here: what it sells, in its own words, 1 funding event, 1 revenue figure and 4 public prices.
London, England, UKFounded 2014prolific.comLatest record 16 Oct 2026
What Prolific sells
In its own words, read on its own site 16 Oct 2026. On the vendor register
- What it sells
Evaluations and benchmarks: “Measure capability, safety, and quality with human evaluations, SME verification, and rubric design.” prolific.com
Expert and human data: “Generate preference data, human feedback, and judgment signals to align models with intended outcomes.” prolific.com
Datasets: “End-to-end evaluation and training data. Managed for you From evaluator specification to data delivery - with the reproducibility and transparency your research demands.” prolific.com
Annotation: “Alternatively, you can also use AI Task Builder for text annotations and evaluations.” prolific.com
- Where its data comes from
Made by experts and contractors: “Verified domain experts generating SFT data, instruction-response pairs, and specialist annotations across 80+ languages.” prolific.com
- Buys data from owners
- Its pages do not say it does.
- Areas its pages name
- Coding, Medical, Languages
Public prices involving Prolific
- Prolific participant and tasker pay, minimum
Prolific recommends higher pay for AI annotation, coding or advanced STEM tasks.
The payer's own page, Prolific, Pricing FAQ
$8.00 per hourper hour (paid to the worker)
- Prolific participant and tasker pay, recommended
Prolific recommends higher pay for AI annotation, coding or advanced STEM tasks.
The payer's own page, Prolific, Pricing FAQ
$12.00 per hourper hour (paid to the worker)
- Prolific platform fee on participant and AI-tasker rewards (academic or non-profit customers)
A published markup: the buyer pays the worker's reward plus 33.3%. Managed services and AI-tasker programmes are quoted privately.
A vendor's published price guide, Prolific, Pricing FAQ
33.3% platform feefee on top of worker pay
- Prolific platform fee on participant and AI-tasker rewards (corporate customers)
A published markup: the buyer pays the worker's reward plus 42.8%. Managed services and AI-tasker programmes are quoted privately.
A vendor's published price guide, Prolific, Pricing FAQ
42.8% platform feefee on top of worker pay
What Prolific earns
Revenue, run rates and ARR as each was published. Run rates are often a best month times twelve, and gross figures include what passes through to experts.
- annualised revenue May 2026Measurerun-rateFigure$500M
Funding and acquisitions
- 11 Jul 2023EventSeries AAmount$32M
Cite this
AIData.Broker, “Prolific in the AI training data market”, reviewed 16 Oct 2026. https://aidata.markets/companies/prolific
Free to reuse under CC BY 4.0 if you credit AIData.Broker and link to this page. Each row names the publication that stated it, and words quoted from a source keep that source's own terms.