62 AI training platforms, curated for real opportunity.

Abaka AI

Expert

Reasoning-heavy, decision-based annotation for frontier AI models.

Acgence

Expert

Selective network focused on healthcare-focused annotation and expert data.

Alegion

Expert + Generalist

Enterprise-grade data labeling for computer vision and NLP at scale.

Alignerr

Expert

Expert-level AI training work requiring deep domain knowledge.

Amazon Mechanical Turk

Generalist

The original micro-task marketplace — broad range of human intelligence tasks.

Appen

Generalist

Global crowdsourcing platform serving major tech companies with data annotation.

Braintrust

Expert

Curated expert network where you set your own rates and own your reputation.

Careerflow.ai

Expert + Generalist

Managed services connecting human data experts with frontier AI labs.

Clickworker

Generalist

Global crowdworking platform for micro-jobs and data tasks.

CloudFactory

Expert + Generalist

Managed workforce solutions for enterprise AI data pipelines.

Cogito Tech

Expert + Generalist

Project-based annotation and labeling for AI model training.

Data Annotation Tech

Generalist

Train chatbots with writing, coding, and reasoning tasks.

Datacurve (GLG)

Expert

Largest expert network for AI consulting — premium rates for domain specialists.

DataForce

Expert + Generalist

Global community for linguists and language data professionals.

DATAmundi.ai

Expert

Vetted SME network for LLM fine-tuning and advanced AI evaluation.

Datavio

Generalist

Remote linguistic and labeling jobs for AI data projects.

Encord

Expert

Expert annotation platform for medical imaging and autonomous systems.

Ethos

Expert

Paid consulting calls connecting domain experts with AI companies.

Gloz

Expert + Generalist

Language-focused LLM evaluation and annotation platform.

Handshake AI

Expert

Paid Fellowship programme to test and evaluate frontier LLMs.

Hive Micro

Generalist

Image tagging, audio transcription, and content moderation tasks.

HumanSignal

Expert

Global network of legal, medical, and technical specialists for AI data.

iMerit

Expert

Expert-led AI tuning for healthcare, autonomous vehicles, and enterprise AI.

Innodata

Expert + Generalist

Talent network for large-scale annotation and AI data services.

Invisible Technologies

Expert

ML experts for complex technical scenarios and advanced AI workflows.

JumpTask

Generalist

Web3-powered data labeling platform with instant crypto payouts.

Kled.ai

Generalist

Mobile app to upload personal data and earn from AI training datasets.

Lionbridge

Expert + Generalist

Legacy leader (now TELUS) in linguistic and AI training data roles globally.

LXT

Generalist

Flexible data collection and annotation tasks for AI training.

Mercor AI

Expert

Selective platform for PhDs and advanced degree holders working on frontier AI.

Micro1

Expert

Connects subject-matter experts with Silicon Valley AI companies.

Mindrift

Expert + Generalist

Tutor AI in writing, reasoning, and coding through expert annotation.

Neevo (DefinedCrowd)

Generalist

Validate translations, transcribe audio, and annotate data for AI.

OneForma

Generalist

Part-time remote linguistic validation and data annotation work.

OpenTrain AI

Expert + Generalist

Consolidated data labeling job board for AI training freelancers.

Outlier

Expert + Generalist

Train generative AI with your expertise in writing, coding, and reasoning.

Pareto

Expert

Expert-vetted labelers for open AI projects requiring specialist knowledge.

Prolific

Generalist

Academic research studies and AI model evaluation for participants worldwide.

Remotasks

Generalist

Image annotation and AI training tasks with free onboarding training provided.

REX

Expert

Vetted expert team for strategic research and business writing projects.

Rise Data Labs

Expert + Generalist

US-based talent pool of 500K+ for AI training and data annotation.

RWS

Expert + Generalist

AI training data services for linguists, translators, and language experts.

RYZ Labs

Expert

Specialized roles for frontier AI labs requiring deep technical expertise.

Sama

Expert + Generalist

Ethical AI data workforce providing high-quality annotation at scale.

Sapien AI

Expert

Enterprise data collection for chain-of-thought reasoning and RLHF tasks.

Scale AI

Expert

Scale Scholar programme for advanced degree holders and domain experts.

Sigma.ai

Expert + Generalist

Multilingual annotation and AI training for top AI builders worldwide.

Silencio AI

Generalist

Mobile app that earns you money from ambient audio recordings for AI training.

SME Careers

Expert

High-value AI training work exclusively for subject-matter experts.

SO Development

Expert

Custom NLP and LiDAR datasets built by specialists with 5+ years of experience.

Stellar AI

Expert

Tutor AI models in mathematics, sciences, and writing with expert knowledge.

Sunain.com

Generalist

Voice, video, and text projects with upfront transparent rates.

SuperAnnotate

Expert + Generalist

Meticulous data labeling and annotation for AI model fine-tuning.

Surge AI

Expert

Domain experts for prompt writing, AI safety evaluation, and RLHF.

TaskVerse

Generalist

Beginner-friendly labeling, feedback, and data annotation tasks.

TELUS International AI

Expert + Generalist

Part-time AI rater and AI modeling roles for a global tech company.

Toloka

Expert + Generalist

Microtasks platform plus a vetted expert network for complex AI projects.

Turing

Expert

Elite professionals advancing LLMs in coding, STEM, and technical domains.

Welo Data

Expert + Generalist

500K+ vetted trainers for model evaluation and AI data annotation.

X.AI

Expert

STEM Tutors and AI trainers for Grok — the company behind the frontier model.

Uber AI Solutions

Generalist

Uber's AI data services division offering flexible, paid online tasks: evaluate AI responses, collect and label data, test products, and translate content.

Your Personal AI

Expert + Generalist

Freelance AI projects from data preparation through to model evaluation.