Platforms compared on screening, fit and median published rate
Mercor
273 open
micro1
251 open
Handshake AI
Profile entry
Ethos
100 open
AfterQuery
227 open
Turing
174 open
Median rate on our listings$80/hr · 237 rate observations$70/hr · 244 rate observationsVaries by matched opportunity$80/hr · 100 rate observations$80/hr · 227 rate observationsHourly & per-task mix
ScreeningCredential check, then an AI-led video interviewSkills assessment, then an AI interviewIdentity check, then project matchProfile and ID check, then AI-assisted matchingApply directly, or one unpaid assessment for ongoing pool workApply directly per listing — assessment and interview vary
Best forLicensed and postgraduate expertsExperts and strong generalists open to task-based workUS-based experts and studentsExperienced practitioners open to calls and projectsCredentialed experts and skilled generalists across a wide field rangeEngineers, scientists, lawyers, finance and domain-expert SMEs

Listing counts and medians by platform and by field, with percentiles and the full method, are in the AI training market report.

Every platform we track

Mercor

Credentialed work

Credentialed domain work in medicine, law, finance and PhD-level STEM. Screening includes credential verification and an AI-led video interview.

Median on our listings
$80/hr
Screening
Credential check, then an AI-led video interview
Best for
Licensed and postgraduate experts
273 open rolesView profile →

micro1

Task-based work

Evaluation, annotation and rubric work with a wide range of role types, including engineering and language queues. Screening is a skills assessment and an AI interview.

Median on our listings
$70/hr
Screening
Skills assessment, then an AI interview
Best for
Experts and strong generalists open to task-based work
251 open rolesView profile →

Handshake AI

US network

The AI evaluation arm of Handshake, the US college career platform. General evaluation work needs no AI background; domain-specific projects require the relevant credentials.

Screening
Identity check, then project match
Best for
US-based experts and students
Profile entryView profile →

Ethos

Expert network

Create a profile, verify your identity, and be matched to expert calls, consulting, research and AI projects. AI-assisted screening with human review; an AI voice screen may be part of it.

Median on our listings
$80/hr
Screening
Profile and ID check, then AI-assisted matching
Best for
Experienced practitioners open to calls and projects
100 open rolesView profile →

AfterQuery

Listings + assessments

Fixed-rate listings and assessment-gated pools spanning medicine, law, finance, engineering, the sciences, languages and creative work. Apply directly, or pass one unpaid assessment for ongoing matched work in a domain.

Median on our listings
$80/hr
Screening
Apply directly, or one unpaid assessment for ongoing pool work
Best for
Credentialed experts and skilled generalists across a wide field range
227 open rolesView profile →

Turing

Open marketplace

A wide-open board of engineering, science, legal, finance and domain-expert contract work behind frontier AI labs — most listings state a rate, and many pay a referral bonus on top of it.

Pay structure
Hourly or per task, stated on each listing
Screening
Apply directly per listing — assessment and interview vary
Best for
Engineers, scientists, lawyers, finance and domain-expert SMEs
174 open rolesView profile →