AI training jobs allow people to earn money online by helping train and improve artificial intelligence systems.
Below you’ll find a curated list of legitimate AI training companies offering remote work opportunities worldwide.
We focus on realistic earning expectations, transparent platforms, and up-to-date information.
Each company listed here is reviewed individually, with clear pros, cons, and application steps.
Click on any company to read a full review and learn how to apply.
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List of AI Training Companies
🔹 Mercor
AI-focused talent marketplace connecting vetted professionals with project-based AI, data, and engineering roles. Mercor emphasizes skill matching and longer-term project work, positioning itself closer to a talent network than a traditional data annotation platform.
👉 Read full Mercor review
🔹 SuperAnnotate
AI data annotation platform offering tools and projects for image, video, text, and LLM-related annotation tasks, often used in computer vision and advanced AI training workflows.
👉Read full SuperAnnotate review
🔹 Braintrust
Decentralized talent network connecting vetted professionals with AI, engineering, and data-related projects. Braintrust is often used for AI training, evaluation, and model-related work through client-driven projects rather than open task marketplaces.
👉 Read full Braintrust review
🔹 FRATCH
AI-powered freelance marketplace connecting experienced professionals with consulting, AI, IT, engineering, finance, and digital transformation projects. FRATCH primarily serves the DACH market (Germany, Austria, Switzerland) and uses AI-driven CV matching to connect freelancers with enterprise clients, making it better suited to experienced specialists than entry-level data annotation work.
🔹 Rise Data Labs
AI training and data annotation company focused on high-quality model training, evaluation, and RLHF workflows. Rise Data Labs connects professionals with AI projects requiring contextual understanding, often involving advanced reasoning and domain-specific tasks.
👉 Read more about Rise Data Labs
🔹 Handshake
Career and talent platform primarily focused on connecting students and early-career professionals with employers, including opportunities related to AI training, data labeling, research assistance, and technical support roles. Handshake is commonly used for entry-level and academic-adjacent AI projects rather than open microtask-based annotation.
🔹 DataAnnotation.tech
Platform specialized in AI response comparison, evaluation, and human feedback tasks used to improve large language models. DataAnnotation.tech focuses on reasoning-heavy work such as ranking AI outputs, assessing correctness, and providing structured feedback, making it particularly suitable for contributors interested in LLM evaluation rather than simple data labeling.
👉 Read full DataAnnotation.tech review
🔹AfterQuery
AI training and research platform connecting professionals, researchers, students, and subject-matter experts with projects involving model evaluation, advanced reasoning, and expert-generated training data. AfterQuery offers opportunities across fields such as software engineering, finance, medicine, law, and writing, with potentially high pay for specialized roles but inconsistent project availability.
🔹 Micro1
AI workforce and staffing platform that connects companies with vetted global talent for AI training, evaluation, and domain-specific projects. Micro1 is known for higher-paying roles that often require subject-matter expertise in areas such as medicine, law, finance, or advanced STEM fields.
👉 Read full Micro1 review
🔹 Labela
AI workforce platform specializing in healthcare and life science experts for frontier AI training and evaluation projects. Labela connects physicians, researchers, and other subject-matter experts with remote opportunities involving AI response evaluation, clinical reasoning, and scientific model improvement, offering highly specialized work rather than general data annotation.
🔹 TELUS International AI
Global AI services provider offering search evaluation, AI training, and linguistic data work for major technology companies. TELUS International AI operates structured, project-based programs (including former Lionbridge AI roles) and is especially well known for multilingual AI evaluation and search quality tasks.
👉 Read full TELUS AI review
🔹 Turing
AI research and talent platform connecting software developers, researchers, data scientists, and subject-matter experts with projects involving AI training, coding, model evaluation, advanced reasoning, and reinforcement learning. Turing focuses on skilled and expert-level work rather than traditional microtask-based data annotation.
🔹 Ethos Ai
Ethos is an AI-powered expert network that connects experienced professionals with high-paying AI training, consulting, and research projects. Opportunities span law, finance, medicine, engineering, and other specialist fields, with advertised rates ranging from $70 to $225 per hour.
🔹 Scale AI
Enterprise-focused AI data platform supporting advanced machine learning systems through large-scale data annotation, validation, and model evaluation. Scale AI primarily works with enterprise and research clients and offers highly structured, professional AI training workflows rather than open crowd-based microtasks.
👉 Read full Scale AI review
🔹 Workada
Remote AI training and data labeling platform connecting contributors with projects involving text, image, and content evaluation tasks. Workada offers flexible contract work, structured onboarding, and AI training opportunities, making it an accessible option for those looking to enter the AI data annotation industry.
🔹 Appen
One of the longest-running AI data annotation companies, providing a wide range of remote AI training, language, and data labeling projects. Appen offers both entry-level crowdwork tasks and more specialized projects, making it a common starting point for people entering the AI training space.
👉 Read full Appen review
🔹 TransPerfect
Global language and localization company that also works on large-scale AI training and multilingual data annotation projects, including text, audio, and language-specific AI evaluation tasks for enterprise clients.
👉 Read full TransPerfect review
🔹 Gloz
AI training platform focused on language-based data annotation and LLM evaluation, involving tasks such as text review, response assessment, and human feedback for AI models.
👉 Read full Gloz review
🔹 Mindrift
AI training and data services platform focused on LLM evaluation and human feedback, supporting the improvement and alignment of large language models through structured review and assessment tasks.
👉 Read full Mindrift review
🔹 iMerit
Enterprise-level AI data services company specializing in high-quality data annotation, model evaluation, and AI training for complex use cases such as computer vision, NLP, healthcare, and autonomous systems.
🔹 Outlier
AI training platform focused on reviewing and evaluating AI-generated responses, completing structured tasks, and contributing to specialized AI improvement projects. Known for relatively easy onboarding and flexible, project-based work, Outlier is often used for LLM response evaluation and human feedback tasks.
🔹 Invisible Technologies
AI operations and data services company focused on large-scale AI training, process optimization, and behind-the-scenes data work for enterprise clients. Invisible Technologies is known for structured, remote AI-related roles involving data review, content operations, and AI model support, often organized in long-term, team-based projects rather than open task marketplaces.
👉 Read full Invisible Technologies review
🔹 OneForma
Global AI training and crowdsourcing platform operated by Pactera EDGE, offering data annotation, transcription, translation, and linguistic evaluation tasks. OneForma is widely used for multilingual AI projects and is particularly suitable for global contributors and language-based AI training work.
🔹 Welocalize
Global localization and language services company offering AI training, search evaluation, and linguistic data annotation projects. Welocalize is especially known for multilingual AI work and structured, project-based remote roles.
🔹 LXT AI
Global AI data annotation and training company focused on language, speech, and localization projects. LXT AI works with enterprise clients and offers project-based AI training tasks, especially suitable for multilingual and global contributors.
🔹 Lionbridge
Formerly one of the most well-known AI training and search evaluation companies. Lionbridge’s AI programs have largely been absorbed by TELUS International AI, which now offers similar data annotation and AI evaluation roles.
🔹 Innodata
Enterprise-level AI data services company specializing in large-scale data annotation, content processing, and AI training support. Innodata focuses on structured, professional AI projects rather than open microtask platforms.
🔹 Alignerr
AI training platform focused on cognitive labeling, decision evaluation, and ethical AI alignment tasks. Alignerr emphasizes high-quality human reasoning and judgment rather than large-scale microtask annotation.
🔹 Abaka AI
AI training and evaluation platform offering remote contract work focused on reasoning, decision-based annotation, and human feedback for AI models. Abaka AI is often cited for potentially higher pay compared to traditional AI microtask platforms.
🔹 Stellar AI
AI training and evaluation platform offering project-based data annotation and quality assurance tasks. Stellar AI focuses on accuracy, consistency, and guideline-driven work rather than high-volume microtasking.
🔹 SME Careers
Platform connecting subject-matter experts with paid AI training, expert review, and model evaluation projects. SME Careers focuses on high-paying, domain-specific AI work rather than general data annotation tasks.
👉 Read full SME Careers review
🔹 Cohere
Enterprise AI company focused on large language models (LLMs) and language intelligence. Cohere offers expert-level roles and research-oriented opportunities related to AI training and model evaluation, rather than open crowd-based annotation tasks.
🔹 RWS
Global localization, language, and AI data services company working with enterprise and research clients on large-scale AI training, data annotation, and language-related projects. RWS is often involved in structured AI workflows such as linguistic validation, content evaluation, and domain-specific annotation, especially in regulated and technical fields.
🔹 Perplexity AI
AI-powered search and answer engine focused on large language models and information retrieval. Perplexity AI offers professional research, engineering, and quality roles related to AI systems, not open crowd-based AI training tasks.
👉 Read full Perplexity AI review
🔹 xAI
AI research and product company focused on large language models, reasoning systems, and advanced AI development. xAI offers highly selective research and engineering roles rather than open, crowd-based AI training tasks.
🔹 Toloka
Global crowdsourcing platform offering data annotation, content evaluation, and AI training microtasks. Toloka is beginner-friendly and provides small, task-based work used to train and evaluate machine learning models.
🔹 Prolific
Online research platform connecting participants with paid academic and industry studies, including tasks used for AI training, human feedback, and data collection. Prolific focuses on short research-based studies rather than ongoing data annotation work.
🔹 Remotasks
AI training and data annotation platform focused on image, video, and LiDAR annotation for computer vision systems. Remotasks offers structured training programs and project-based work, with higher pay potential for advanced tasks.
🔹 CloudFactory
Global data operations company providing human-in-the-loop services for AI systems. CloudFactory focuses on structured, team-based data annotation and validation work rather than open microtask platforms.
👉 Read full CloudFactory review
🔹 Clickworker
Global crowdsourcing platform offering microtasks such as text labeling, image tagging, surveys, and search evaluation used for AI training and data collection. clickworker is beginner-friendly but offers very low pay per task.
👉 Read full clickworker review
🔹 Surge AI
Premium AI data services company focused on RLHF (Reinforcement Learning from Human Feedback) and high-quality human evaluation for advanced AI models. Surge AI operates through selective contracts and managed teams, not open crowd-based tasks.
🔹 TaskVerse
Microtask-based platform offering occasional AI-related tasks such as data labeling, content review, and basic human feedback. TaskVerse is easy to access and beginner-friendly, but task availability can be inconsistent and workflows are less structured compared to professional AI training platforms.
🔹 Uber AI Solutions
Task-based platform offering flexible AI-related work such as data labeling, content evaluation, and basic human feedback tasks. Uber AI Solutions focuses on short, on-demand assignments rather than long-term AI training projects, making it more suitable for supplemental or entry-level AI work.
👉 Read full Uber AI Solutions review
🔹 RemoExperts (Rex.zone)
Expert-focused AI training and evaluation platform connecting vetted professionals with high-value remote projects such as LLM evaluation, RLHF, domain-specific analysis, and advanced data annotation. RemoExperts emphasizes selective onboarding, expert-level contributions, and competitive pay rather than open microtask workflows.
👉 Read full RemoExperts review
🔹 Silencio AI
Platform focused on collecting real-world audio data to support speech and AI model development. Silencio AI is closer to a data collection / crowdsourcing model than a traditional AI training marketplace: contributors earn by capturing and submitting audio recordings through the app, helping improve voice and sound recognition systems.
👉 Read full Silencio AI review
🔹 Centific
Enterprise-level AI data solutions company providing scalable data pipelines, human-in-the-loop workflows, and high-quality datasets for AI projects. Unlike traditional microtask platforms, Centific focuses on end-to-end AI data infrastructure and custom solutions for large clients in regulated industries.
How to Choose the Right Platform
Here are a few questions to ask yourself:
- Are you looking for beginner-friendly work or more advanced tasks?
- Do you prefer flexible microtasks or project-based work?
- Is consistent pay more important than occasional higher rates?
Answering these will help guide which platform is best for you.
Getting Started
If you’re new to AI training jobs, start with one platform and build from there:
- Create your free account
- Complete any onboarding or qualification tasks
- Try a few early tasks to gauge fit
- Expand to other platforms over time
👉 Ready to explore? Open AI/Data Annotation Jobs
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👉 Guides
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