# Prolific Prolific is a human data platform for collecting quality-controlled responses, judgments, and annotations from verified participants for AI and research. - Findings24: - Website: - Pricing: Freemium - Categories: Developer Tools ## What is Prolific? Prolific is a human data platform for AI developers, researchers, and organizations that need responses, judgments, or annotations from real people. The product is designed to help teams collect data from verified participants for studies, evaluations, and other human-in-the-loop workflows. The site presents two ways to work with Prolific: a self-serve platform with pay-as-you-go access and a managed services option for teams that want Prolific to handle more of the operational work. Across both options, the emphasis is on quality-controlled human data, participant verification, and flexible data collection through familiar tools or API-based workflows. ## What can Prolific do? ### Self-serve platform access Launch studies, AI evaluations, or research projects through a self-serve platform with immediate access to verified participants. ### Audience targeting and screening Use demographic filtering, custom screening, representative or quota samples, and direct participant messaging to shape who sees each study. ### Tool and API integrations Connect via URL-based integrations or API access, with support for survey platforms, annotation tools, and user research software. ### Managed project delivery Work with a managed services team for custom sourcing, participant onboarding, pool optimization, quality assurance, and reporting. ### Verified participant network Access verified participants and domain experts across a wide range of tasks, including AI evaluation, research studies, and specialist annotation. ## Use Cases ### AI model evaluation and training Run preference tuning, safety evaluation, factuality checks, or benchmark tasks with human feedback from representative populations. ### Research studies Collect survey responses, behavioral insights, and publication-ready datasets from verified participants for academic or policy work. ### Market and user research Test products, validate concepts, or gather consumer feedback from target audiences in a self-directed workflow. ### Participant studies and task completion Use participant-facing workflows for paid studies, task completion, and flexible online participation from the participant side. ### Domain expert data collection Source specialist input from verified domain experts for STEM, healthcare, programming, and other expert-driven work. ## Frequently Asked Questions ### What is Prolific? Prolific is a platform for collecting high-quality human data from verified participants. It supports AI evaluation, research studies, and participant-based tasks, with both self-serve platform access and managed services. ### How does Prolific pricing work? Platform customers can get started without a contract or subscription by adding funds and launching projects. Managed services uses a custom scope-based quote and typically a Statement of Work. ### Can Prolific connect with other tools? Yes. The pricing page says Prolific integrates with survey platforms, annotation tools, and user research software, and also offers API access for more complex workflows. ### How does Prolific handle data quality? Prolific says it has 300,000+ active participants, with additional people on a waitlist, and uses an AI-powered quality monitoring system called Protocol to verify identity and monitor behavior. ### What is the difference between platform and managed services? Prolific supports both platform access for teams that want to manage their own data collection and managed services for organizations that want expert-led project support and reporting. ## Quick Facts - **Category**: Human data platform - **Primary users**: AI developers, researchers, organizations - **Access model**: Self-serve platform and managed services - **Pricing model**: Pay as you go for platform; custom quote for managed services - **Source domain**: prolific.com - **Notable workflow**: Collect data from verified participants via link, integrations, or API