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Best for
Alignerr. Specialists who want a second queue alongside a main platform. Screening: application plus credential verification, varies by track.
The catch: Headline rates are real but rare, and work availability comes and goes.
Best for
Handshake AI. PhDs, graduate students and credentialed academics. Screening: application with credential verification.
The catch: A newer expert marketplace, so project volume is still uneven.
Best for
micro1. Software engineers, especially with competitive-programming experience. Screening: aI interview plus a technical assessment.
The catch: Engineering-focused, so there is little here for non-technical fields.
Best for
Braintrust. Experts who want task-based AI work rather than waiting on a project match. Screening: profile, then an AI skills interview, then you browse and accept tasks.
The catch: The AI-training work sits inside a general freelance marketplace, so expert tasks share the site with ordinary contract listings, and the bottom of the pay band is annotation work rather than expert work.
Some links here are referral links, which pay this site if you are hired. The order above is by fit for each background, not by which ones pay us.
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FAQ
It depends on your background, not on the platform. Alignerr suits specialists who want a second queue for the weeks Mercor has nothing in their field. Handshake AI suits phDs and graduate students, where fewer applicants compete. micro1 suits software engineers, especially outside the US. Braintrust suits experts who would rather pick tasks than wait to be matched.
Yes. Most experienced contributors run two or three platforms, because acceptance on one does not guarantee work. The only limit is a conflict of interest on a specific project, which the platform will flag.
Platforms rarely say. The most common reasons are a rushed assessment, a CV that does not make the specialty obvious, or a country the project does not accept. Rejection on one platform says nothing about another.
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