Invisible
560 open roles · median $35/hr
Invisible Technologies’ expert network, recruiting through its Meridial brand: freelance AI trainer projects across languages and professions.
Alignerr
492 open roles · median $60/hr
Labelbox’s expert network: design and review AI training tasks in your field, from transcription to PhD-level science.
Welo Data
327 open roles · median $20/hr
Welocalize’s AI data division: rating, annotation, validation and data collection projects, many tied to a language and country.
Weekday
308 open roles · median $95/hr
Recruiting platform that posts AI training roles on behalf of AI labs and data vendors it doesn’t name.
Mercor
277 open roles · median $85/hr
Expert network that hires professionals (doctors, lawyers, engineers, PhDs and more) for AI lab projects. Applications include a short AI interview.
SuperAnnotate
254 open roles · up to $150/hr
SuperAnnotate’s expert network, SME Careers: hourly contract work writing and reviewing AI training data across many professional fields.
micro1
237 open roles · median $70/hr
AI-led recruiting network: candidates interview with micro1’s AI interviewer, then take on expert data work at published hourly rates.
Handshake AI
228 open roles · up to $300/hr
Handshake’s AI fellowship: students, graduates and PhDs evaluate and improve AI models on flexible part-time projects (US, India and Canada).
Anyone AI
194 open roles · median $45/hr
AI training company hiring STEM, software and finance experts for hourly AI lab contracts, with many roles open across Latin America and Europe.
Prolific
160 open roles · median $25/hr
Prolific’s Expert Network: AI training work for verified domain experts and fluent speakers, alongside its research-study platform.
Pasiflora AI
132 open roles · up to $40/hr
Expert talent pools for AI data projects. Most postings are ongoing pools you join, rather than single openings.
DataAnnotation
112 open roles · up to $150/hr
Surge AI’s contributor platform: self-scheduled AI evaluation and writing work for generalists and specialists.
RWS TrainAI
98 open roles · median $18/hr
TrainAI, the AI data community of the language company RWS: contract work in 40+ languages, such as search and speech evaluation, annotation and subject-expert review.
Sigma AI
97 open roles · too few stated rates
Freelance linguistic and audio-collection projects for AI, usually tied to a specific language and country.
Rise Data Labs
73 open roles · median $30/hr
Expert data company running hourly AI training projects across professional domains.
Volga Partners
65 open roles · median $16/hr
On-call subject-matter experts for AI evaluation and annotation review projects.
Mindrift
61 open roles · up to $70/hr
Toloka’s freelance platform for AI tutors, writers and domain experts: part-time, project-based work.
Appen / CrowdGen
60 open roles · too few stated rates
Appen’s CrowdGen community: voice, language and data annotation projects.
Claru
60 open roles · median $45/hr
Reka AI’s contributor brand: video capture, gaming and evaluation tasks, paid hourly.
Braintrust
47 open roles · median $25/hr
Talent network where companies post gigs. Its AI-training section lists work for Turing, DATAmundi, iMerit and others.
Babel Audio
43 open roles · too few stated rates
Paid voice work for AI: recorded conversations, voice acting and transcription in many languages.
RemoExperts
38 open roles · median $95/hr
RemoExperts (rex.zone): expert AI trainer roles in software, finance, medicine and other fields.
iMerit Scholars
29 open roles · too few stated rates
iMerit Scholars: independent-contractor roles for language experts, AI response evaluators, transcribers and medical and other specialists.
TransPerfect DataForce
27 open roles · too few stated rates
TransPerfect’s DataForce community: paid data collection, evaluation and transcription projects, some on-site.
Sovrano AI
21 open roles · too few stated rates
European AI data company hiring experts as AI trainers and evaluators, paid in euros or dollars.
OneForma
20 open roles · too few stated rates
Centific’s crowd platform: translation, transcription, judging and data collection projects.
xAI
19 open roles · too few stated rates
xAI hires AI tutors to train Grok, across languages and specialist domains.
Terac
18 open roles · median $75/hr
Paid interviews, studies and AI evaluation tasks for working professionals.
Scale AI
18 open roles · too few stated rates
Scale AI’s Human Frontier Collective fellowships for top experts, plus other contributor roles.
Vetto
18 open roles · too few stated rates
Platform connecting professionals to AI projects, paid per approved task.
CloudFactory
10 open roles · too few stated rates
Data-labelling company that also hires contributors for data capture, voice recording and expert review projects.
Datamundi
8 open roles · too few stated rates
Data company (formerly Summa Linguae) hiring freelancers for voice recording, photo and video collection and language rating, often in less common languages.
Outlier
7 open roles · up to $35/hr
Scale AI’s contributor platform for AI evaluation and writing, now focused on specialists and languages.
G2i
6 open roles · too few stated rates
Engineering talent network hiring senior software engineers on contract to train and evaluate AI coding models.
Crossing Hurdles
3 open roles · too few stated rates
Recruits people for paid first-person video recording projects at home or at work, in Latin America, the US and Canada.
Cohere
3 open roles · too few stated rates
Canadian AI lab with contract data-annotation roles for engineers, data scientists and generalists in Canada.
Pila8
3 open roles · too few stated rates
English-language audio and voice recording projects.
Remotasks
3 open roles · up to $17/hr
Scale AI’s older task platform. A handful of legacy listings remain.
Innodata
2 open roles · too few stated rates
Data engineering company hiring flexible-hours generative AI associates, mostly in the US.
LXT
2 open roles · up to $25/hr
AI data company hiring voice contributors and study participants for speech data projects.
Sama
1 open roles · too few stated rates
Data-annotation company with annotation and data-collection roles.