What is Prolific?
Real human participants for research and AI training data.
Who is Prolific best for?
Prolific is best for AI teams and researchers who need vetted human data fast, from preference ratings to academic studies.
AI training and evaluation
Raters drawn from representative groups supply preference data, safety checks and benchmark scores for language models.
Academic studies
Verified participants and a lower 33.3% fee for academic and non-profit teams suit university research on a grant budget.
Market and product research
More than 300 audience filters, custom screening and quota samples let a survey reach exactly the people it needs.
Teams without research staff
Managed services hand the whole project, from sourcing to quality checks and reporting, to a dedicated Prolific team.
How much does Prolific cost?
Prolific has no subscription: on its self-serve Platform you pay the participant rewards you set plus a platform fee of usually 42.8%, or 33.3% for academic and non-profit teams, and Managed services are quoted per project.
- Pay as you go, no monthly fee or contract; top up a wallet and launch
- 33.3% fee for academic and non-profit teams
- 300,000+ active participants, 300+ audience filters
- Prolific's team runs the data collection for you
- Custom sourcing, participant training and multi-stage checks
- Dedicated project team, analysis and reporting
You set each participant's reward: at least $8 an hour, with $12 an hour or more recommended, and higher rates for Domain Experts and AI Taskers. In Prolific's calculator, 1,000 half-hour submissions at $15 an hour cost $7,500 in rewards plus $3,214.29 in platform fees ($2,500 for academic teams). VAT or sales tax may be added. Managed services usually run under a statement of work. Full pricing on prolific.com. We checked these prices on .
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What are the best Prolific alternatives?
One tool on Recaply does Prolific's job.
Questions about Prolific
What is Prolific?
Real human participants for research and AI training data.
Who is Prolific for?
Prolific is best for AI teams and researchers who need vetted human data fast, from preference ratings to academic studies.
Is Prolific free?
No. Prolific is free to sign up, with no monthly fee or contract, but every study costs money: you pay each participant a reward you set, at least $8 an hour, plus a platform fee of usually 42.8%, or 33.3% for academic and non-profit teams.
How much should I pay participants on Prolific?
Prolific's minimum is $8 an hour (£6), and it recommends at least $12 an hour (£9). Tasks that need special skills, such as AI annotation, coding or an advanced STEM degree, should pay more, and the platform fee is added on top of the rewards.
What are the best Prolific alternatives?
The closest alternatives on Recaply are Pollfish.
Where can I try Prolific?
On its official website, prolific.com.
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