AI training platforms
15 platforms: who runs each one, whether it's legit, how it pays, and what to watch for. Every claim links to its source.
Mercor
The biggest expert-data marketplace: doctors, lawyers, bankers, engineers and PhDs, hired after an AI interview.
300 live roles · median $80/hr
micro1
Expert projects in STEM, medicine, finance and languages, many at $60-150/hr, after a 20-40 minute AI interview.
24 live roles · median $90/hr
Handshake AI
Hourly AI work for students, grads and PhDs, from $17/hr generalist evaluation up to $125/hr expert projects.
242 live roles · median $80/hr
Alignerr
Also Labelbox
Thousands of listings across coding, languages, audio and expert domains, from $10/hr transcription to $150/hr specialists.
528 live roles · median $60/hr
Outlier
Also Scale AI, Outlier AI
One of the largest generalist and expert AI training platforms. Listings live behind a login, so we can't show them live.
Listings behind login
DataAnnotation
Also DataAnnotation.tech, Data Annotation Tech
Chatbot evaluation and coding work starting at $25-50/hr for general tracks and $40+ for coding and STEM. Projects live behind a login after a starter assessment.
Listings behind login
Prolific
Short paid studies and AI tasks with an enforced pay floor of $8/hr. Easy to join, but it's spare-time money, not a job.
Listings behind login
Invisible
Contract AI trainer roles in coding, languages, law, finance and other specialties, posted as individual openings on its Greenhouse job board.
Listings behind login
Turing
LLM trainer roles, mostly for software engineers plus some STEM experts, with rates that vary by country.
Listings behind login
Remotasks
Also Scale AI
Scale AI's original task platform for labeling work. Still online, but closed in several countries and pointing some new sign-ups to Outlier.
Listings behind login
Appen
Also CrowdGen, Appen Connect
One of the oldest AI data companies: search evaluation, transcription, language and survey projects worldwide, now run through CrowdGen.
Listings behind login
TELUS Digital AI Community
Also TELUS International AI, Lionbridge AI, TELUS Digital
Search evaluation, AI response rating and data collection, plus PhD and specialist 'data partner' roles, across a network of over a million contributors.
Listings behind login
Toloka
Also Mindrift, Toloka Annotators
Microtasks and AI evaluation, now on Mindrift: open 'all-access' tasks for anyone, plus specialized projects you qualify into.
Listings behind login
OpenTrain AI
A marketplace, not an employer: free trainer profiles, job listings with stated hourly rates, and escrow on client projects.
Listings behind login
Braintrust
A vetted freelance network for engineers, designers and specialists, with some AI trainer and evaluation roles.
Listings behind login