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About Prolific
Prolific is a data collection platform that connects you with verified human participants for AI development, academic research, and market studies. It solves the problem of slow, low-quality data by offering instant access to a pool of 300,000+ active participants, with robust quality checks and flexible screening filters.
Who It's For
Designed for AI/ML developers, researchers, and organizations needing representative human feedback for preference tuning, safety evals, benchmarks, or behavioral studies. Also ideal for participants seeking paid study opportunities. It's not for those requiring fully managed research services unless they opt for the Managed Services tier.
Real Use Cases
AI teams use Prolific to collect human preference data for RLHF and model evaluation. Academic researchers accelerate studies with quick participant recruitment. Companies like Ai2 and Columbia University leverage Prolific for high-quality insights, reducing data collection time from weeks to hours.
Key Benefits
With transparent pricing, no monthly fees, and a pay-as-you-go model, Prolific offers a cost-effective solution for quality data. Its built-in quality monitoring (Protocol) runs 40+ checks, ensuring reliable results.
Key features
- 300,000+ Active Participants — Access a large, verified participant pool for diverse studies.
- AI Taskers and Domain Experts — Engage with specialists across STEM, healthcare, programming, and more.
- 300+ Audience Filters — Target specific demographics, behaviors, and skills for precise sampling.
- Representative and Quota Samples — Ensure your data reflects the population you need.
- Custom Screening — Create tailored pre-screening questions to match your study criteria.
- API and No-Code Integrations — Seamlessly connect with your existing workflow or use built-in tools.
- Quality Monitoring (Protocol) — 40+ automated checks to verify identity and enhance data reliability.
SaaSpartout Score
7.6
/10
Editorial score from our review methodology — not user ratings.
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Prolific Pricing
Prolific pricing: from pay-as-you-go (no monthly fees).
Platform (Pay-as-you-go)
No monthly fees; pay only for the responses you collect. Ideal for teams with research expertise. Includes instant access to participants, AI Taskers, audience filters, API, and support.
Managed Services
Custom pricing for teams needing expert-led data collection. Includes complete datasets, expert curation, custom sourcing, and dedicated project team. Contact sales for a quote.
Start for free—create an account and run a study with no upfront cost.
Frequently asked questions
How much does Prolific cost?
Prolific's platform plan is pay-as-you-go with no monthly fees; you only pay for responses. Managed services have custom pricing. Start for free.
Is there a free trial on Prolific?
Yes, you can start for free. You can create a study and test the platform without paying upfront.
What is Prolific used for?
Prolific is used to collect high-quality human data for AI training (e.g., RLHF, preference tuning), academic research, and market studies, with verified participants.
Who is Prolific best for?
It's best for AI/ML developers, researchers, and organizations needing rapid, quality human feedback, and for participants looking to earn money by taking studies.
What are top alternatives to Prolific?
Alternatives include Amazon Mechanical Turk, UserTesting, and Respondent. Prolific stands out for its quality control and representative sampling.
Can I get paid to use Prolific?
Yes, as a participant, you can join paid online studies. Quick signup, flexible schedule, and real payouts are guaranteed.
