Training-data company
Prolific
Prolific is a platform where AI teams and researchers pay vetted participants for human feedback, evaluations and online studies. Its pricing page cites more than 300,000 active participants, sets minimum participant pay at £6.00 or $8.00 an hour and charges corporate customers a 42.8% platform fee. Prolific sells participant time and does not buy company data.
Facts checked against Prolific's own pages in November 2026. Visit Prolific
At a glance
- What it buys
- Participant time for studies, preference data, safety evaluations and benchmarks. Does not buy company data
- Published payout
- Participants: at least £6.00 or $8.00 an hour, with £9.00 or $12.00 an hour recommended
- Size requirement
- Not applicable to companies. More than 300,000 active participants, with over a million on the waitlist
- Exclusivity
- Not published
- Fee to seller
- Not applicable to participants. Buyers pay a 42.8% platform fee (corporate) or 33.3% (academic and non-profit)
- Payment timing
- Not published on the pages we checked
Key takeaways
- Prolific is a training-data company.
- What it buys: Participant time for studies, preference data, safety evaluations and benchmarks. Does not buy company data.
- Published payout: Participants: at least £6.00 or $8.00 an hour, with £9.00 or $12.00 an hour recommended.
- Size requirement: Not applicable to companies. More than 300,000 active participants, with over a million on the waitlist.
- Fee to seller: Not applicable to participants. Buyers pay a 42.8% platform fee (corporate) or 33.3% (academic and non-profit).
- Prolific does not publish its exclusivity.
- Facts checked on Prolific's own pages in November 2026.
What does Prolific sell?
Prolific sells access to human participants for AI development and research. Its homepage lists human feedback from representative populations for preference tuning, safety evaluations and benchmarks, plus a Human Feedback API, healthcare and coding experts and agentic evaluations. This is the work that produces RLHF and preference data and evaluation datasets.
What does Prolific pay participants and charge buyers?
Prolific sets a minimum participant rate of £6.00 or $8.00 an hour and recommends at least £9.00 or $12.00 an hour, with more for specialized tasks. Buyers on its pay-as-you-go plan add funds to a wallet with no monthly fee, and pay a platform fee of 42.8% as corporate customers or 33.3% as academic or non-profit customers. Managed services are priced on request.
Comparing buyers?
Published payouts are ceilings, not quotes. We can put your records in front of several vetted buyers and compare offers on the same terms. Get a free valuation.
Sources
- Prolific homepage, Prolific, accessed November 2026
- Pricing, Prolific, accessed November 2026
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Prolific is listed for reference. We are independent and this page is not an endorsement. If anything here is out of date, email hello@sellmydatatoai.net and we will correct it.