Mercor vs Welo Data

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

MercorWelo Data
Open roles297523
Median top rate$100/hr$10/hr
Middle half of rates$65/hr – $120/hr$7/hr – $19/hr
Highest advertised$450/hr$68/hr
Open worldwide65% of roles6% of roles
Hires most forScience & research, Software engineering, Medicine & healthcareLanguages & translation, Business & consulting, Software 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.—
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).

Welo Data

Welocalize's data services — multilingual annotation and evaluation.

Mercor vs Welo Data: questions

Which pays more, Mercor or Welo Data?
Mercor advertises more: a median top rate of $100/hr against $10/hr at Welo Data. These are the rates in open listings (262 on Mercor, 67 on Welo Data), not earnings; each platform sets individual pay after you apply.
Which has more open roles, Mercor or Welo Data?
Welo Data has more open roles: 523 against 297 on Mercor. Counts are refreshed daily from each platform's public listings.
How is applying to Mercor different from Welo Data?
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.

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