DataAnnotation vs Prolific

Side by side from today's live listings and each platform's own documentation. Plenty of people work on both.

	DataAnnotation	Prolific
Live roles	Behind login	Behind login
Median hourly	n/a	n/a
Top rate	n/a	n/a
How it pays	Through PayPal, on request: its FAQ says deposits arrive within a few days after you ask for them. Starting rates are $25-50/hr for general work and $40-150+/hr for coding, STEM and professional tracks.	Researchers must pay at least $8 (£6) an hour, and Prolific recommends $12 (£9). Approved earnings can be cashed out to PayPal once your balance reaches $6 or £6; payments arrive within 24 hours. New accounts wait 72 hours between cash outs until they've done four.
Hiring	Take the starter assessment. If you pass, projects show up in your dashboard. Applicants who aren't accepted usually hear nothing back.	Sign up as a participant and verify your identity. There is often a waitlist; once in, studies that match your profile appear on your dashboard first come, first served.
Run by	DataAnnotation, a long-running remote AI training platform.	Prolific, a London company that runs an online research panel. Universities and AI companies pay participants to take studies and do AI evaluation tasks.