Prolific is a research and AI training platform that connects participants with paid online studies run by universities, companies, and AI labs. Unlike typical micro-task platforms, Prolific enforces a minimum reward equivalent to £9/hr (approx. USD $11/hr) and is known for treating participants fairly.

Studies cover a wide range of topics — from quick surveys to AI model evaluation tasks, preference labelling, and behavioural experiments. Participation is by invite based on your demographic profile, so filling in your profile completely improves your study availability.

Typical tasks: Online surveys, AI preference rating, image and text evaluation, cognitive tasks, academic research participation.

Pay: Per-study, with a platform-enforced minimum hourly rate. Payments via PayPal or Circle (Prolific Cash).