Prolific

Hiring quality verdict.

Prolific sits at the intersection of academic research infrastructure and AI model evaluation, offering a vetted participant pool used by universities, governments, and AI labs to gather human feedback at research-grade quality. The platform enforces minimum pay standards (above UK living wage) and transparent data-use policies that distinguish it from commodity annotation platforms. Prolific is increasingly used for RLHF and AI evaluation tasks, though its academic-first orientation limits its scale-up velocity relative to US-based commercial platforms.