Hire Freelance AI Trainers & Data Labelers
Hire from the #1 Network of AI Training Talent
Post your project and get a curated shortlist in days. Invite hires into your labeling tool or custom platform. You stay in control of workflow and pay securely with transparent fees.
100,000+ Experts
70+ Languages
100+ Domains
Vetted & Tested
Vetted Talent 
Pre-Vetted Talent for Any AI Data Project
Post your job and our AI screens, interviews, and ranks applicants from a network of 100,000+ specialists. You review a shortlist of top-scoring candidates.
AI screens resumes and interviews every applicant
Candidates scored and ranked by fit to your requirements
Review profiles and work history before you hire
Your Tools
Hire Into Any Data Labeling Tool
Invite freelancers into any annotation platform: commercial, open-source, or your own internal tooling. They work in your tools, following your guidelines.
Works with any annotation platform you already use
You keep full control of data and access
No migrations or lock-in
Project Hub
Chat, Docs, and Updates in One Workspace
Communicate with freelancers, share guidelines, and post updates without juggling separate tools. Everything stays in one place.
Built-in chat with group channels and direct messages
Instruction/guideline editor with version history
Onboarding, training, and project announcements
Payments
Pay Freelancers Worldwide with Transparent Fees
Easily pay freelancers anywhere in the world. Secure escrow, transparent platform fees, and no hassle managing international payments.
Funds held in escrow until you approve the work
Pay by hour, by task, or fixed price
Simple platform fee with no hidden costs
Why OpenTrain
Why Top AI Teams Hire on OpenTrain
Faster to Quality Hires
Post once and get a shortlist of top-scoring candidates from a network of 100,000+ AI Trainers and Data Labelers.
Experts for Your Domain
Whatever you're building, find AI Trainers with the domain knowledge to deliver accurate, high-quality work.
Use Any Data Labeling Tool
Invite hires into any commercial, open-source, or custom annotation platform. No migrations.
Scale With Confidence
Add or replace talent quickly, cover languages and time zones, and keep throughput steady.
Transparent, Secure Payments
Pay hourly, per task, or fixed price with escrow and a simple platform fee.
Post Your Job to the #1 AI Training Network Now.
Post a Job Get Started
Post a Job and Start Hiring Today
Create an account and post your first job in minutes. Get matched with pre-vetted AI Trainers and Data Labelers from a network of 100,000+.
Solutions
Find Talent For Any AI Data Need
LLM & Agents
Find vetted domain experts to train and evaluate your LLMs, driving higher quality and more reliable model behavior.
LLM Evaluation 
Red Teaming 
Hallucination Audits 
RLHF & Preference Data 
Supervised Fine-Tuning 
Code Generation Review 
Function Calling 
Computer Use Agent Training 
Reasoning Step Verification 
Multilingual AI Training 
Reasoning Problem Creation 
Agent Simulations 
RL Environment Design View All LLM & Agent Solutions
Structured Data Labeling
Hire experienced annotators to deliver precise, consistent labels at scale across vision, text, audio, and 3D.
Document Annotation 
Image Annotation 
Segmentation 
Video Annotation 
Text Annotation 
Speech and Audio Labeling 
Time Series Annotation 
Point Cloud Annotation 
Medical Imaging Annotation 
Satellite Imagery Annotation View All Data Labeling Solutions
Process
How OpenTrain Works
Post a job, hire from a pre-vetted network, and manage everything in one place.
01
Post a Job & Connect With Pre-Vetted Talent
Post your role and requirements. Our AI screens resumes, interviews applicants, and ranks candidates so you review a shortlist of top matches.
02
Hire Into Your Data Labeling Tools
Invite hires into any data labeling platform or your own environment. You keep full control over setup and workflow.
03
Manage Work and Pay in One Place
Use one workspace for chat, instructions, training, and secure payouts. Keep your team aligned and production moving.
Post Your First Job Now
Create an account and post your role in minutes. Get matched with pre-vetted AI Trainers and Data Labelers from a network of 100,000+.
Post a Job Large Project? Explore Managed Service
For large or complex work, we recruit, onboard, manage, and QA a dedicated team inside your tools.
Managed Service Simplify AI Data Ops
Better data quality
Flexible tooling
Transparent Pricing
Simplify AI Data Ops
Better data quality
Flexible tooling
Transparent Pricing
Integrations
Hire Experts For Any Data Labeling Tool
Hire from the #1 network for AI Trainers and Data Labelers. Post a job and bring pre-vetted experts into any tool you use.
Your Custom Tool
Custom
Label Studio
Multimodal
Roboflow
Vision
AWS SageMaker
Multimodal
CVAT
Vision
Scale Studio
Multimodal
SuperAnnotate
Multimodal
Encord
Vision
Dataloop
Multimodal
Kili Technology
Multimodal
Supervisely
Vision
V7 Darwin
Vision
Datature
Vision
Snorkel AI
Programmatic
Argilla
Text
Datasaur
Text
Prodigy
Programmatic
Get Started
Join the #1 Platform for AI Training Talent
Where top AI builders and expert AI Trainers connect to build the future of AI.
Self-Service
Post a Job
Post your project and get a shortlist of qualified AI Trainers and Data Labelers. Hire and manage your team in the tools you already use.
Managed Service
For Large ProjectsDone-for-You
We recruit, onboard, and manage a dedicated team inside your tools. End-to-end operations for large or complex projects.
For Freelancers
Join as an AI Trainer
Find AI training and data labeling projects across platforms, all in one place. One profile, one application process, more opportunities.