HumanSourcer

Expert AI-training networks

20 expert-tier networks that recruit domain specialists — lawyers, physicians, engineers, linguists — to train and evaluate AI models. Filter by domain, access model, and geography. Every ownership and status claim links to its public source.

Looking for open positions instead? Browse all open roles, filterable by domain, task type, pay, location, and company.

20 of 20 networks
AfterQuery
AfterQuery Experts

Agent evaluation, model training, writing, ML and professional-domain work

Writing / CreativeReasoning / Agents
Alfons AI
Alfons AI Talent Network

AI trainers, data annotators and domain experts

Generalist
Labelbox
Alignerr

AI training, evaluation, coding, writing and specialist review

CodingWriting / Creative
Deccan AI
Deccan Experts

Model training, evaluation and specialist human–AI interaction

Generalist
G2i
G2i Talent

Coding task creation, rubrics, evaluation and agent environments

CodingReasoning / Agents
Handshake
Handshake AI

Generalist and specialist AI evaluation and training projects

Generalist
Human
Human Expert Network

Language, safety, generalist and specialist AI training

LinguisticsSafetyGeneralist
Scale AI
Human Frontier Collective (HFC)

Research, STEM, medicine, finance, legal and ML model evaluation

LawMedicineFinance
iMerit
iMerit Scholars

Domain-expert GenAI tuning, evaluation and text analysis

Generalist
Mercor
Mercor Experts

Law, medicine, finance, engineering, operations and AI evaluation

LawMedicineFinance
Invisible Technologies
Meridial

Law, STEM, finance, coding, linguistics, safety and AI training

LawFinanceCoding
micro1
micro1 Experts Opportunities

Professional, creative, scientific and technical AI training/evaluation

Writing / Creative
Toloka
Mindrift

AI training, reasoning, coding, multilingual evaluation

CodingLinguisticsReasoning / Agents
Pareto AI
Pareto Experts

High-skill AI training and evaluation allocated by demonstrated performance

Generalist
RemoExperts
Rex.zone

Data labelling, RLHF, prompt evaluation, QA and content-safety work

SafetyWriting / CreativeConsulting / Ops
Sepal AI
Sepal Expert Hub

Specialist AI training and evaluation

Generalist
SuperAnnotate
SME Careers

Subject-matter-expert AI training and evaluation

Generalist
Surge AI
Surge Workforce

Domain-expert AI training, evaluation, annotation

Generalist
Turing
Turing AI Advancement Work

Coding, data science, model evaluation, voice and domain review

CodingScience / STEMVoice / Speech
Vetto
Vetto Opportunities

Technical, finance, consulting, clinical, QA and planning-AI evaluation

MedicineFinanceConsulting / Ops