Mercor vs Prolific

Two AI-training platforms side by side, from the roles they have open today and what we know about how each hires and pays. Numbers refresh daily.

Side by side

MercorProlific
Open roles297553
Median top rate$100/hr$26/hr
Middle half of rates$65/hr – $120/hr$26/hr – $40/hr
Highest advertised$450/hr$120/hr
Open worldwide65% of roles100% of roles
Hires most forScience & research, Software engineering, Medicine & healthcareLanguages & translation, Science & research, Engineering
Kinds of work——
After you applyExpect an AI-led interview of 45–90 minutes, the longest of the major platforms. Most applicants are rejected; if you pass, work comes in intensive 2–8 week engagements.Recruitment runs through Prolific's Participant Recruitment program; expect your language fluency or developer skills to be checked.
How it paysWeekly via Stripe—

Rates are what open listings advertise (median of the top of each range), not earnings. How we measure pay

Mercor

Frontier-lab SME placement at the highest pay tier in the market ($80–$200+/hr).

Prolific

Participant-recruitment AI Trainer roles — language fluency and developer tasks.

Mercor vs Prolific: questions

Which pays more, Mercor or Prolific?
Mercor advertises more: a median top rate of $100/hr against $26/hr at Prolific. These are the rates in open listings (262 on Mercor, 389 on Prolific), not earnings; each platform sets individual pay after you apply.
Which has more open roles, Mercor or Prolific?
Prolific has more open roles: 553 against 297 on Mercor. Counts are refreshed daily from each platform's public listings.
How is applying to Mercor different from Prolific?
Mercor: Expect an AI-led interview of 45–90 minutes, the longest of the major platforms. Most applicants are rejected; if you pass, work comes in intensive 2–8 week engagements. Prolific: Recruitment runs through Prolific's Participant Recruitment program; expect your language fluency or developer skills to be checked.

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