Hire Expert AI Trainers & Data Labelers for Your Internal Tool
Built your own annotation, evaluation, or training platform? Bring experienced talent into your systems. Connect with 124,000+ pre-vetted specialists who can learn your workflows and start contributing fast.
124,000+ AI Trainers
Post & Hire
Post your Your Custom Tool project on OpenTrain and hire from a curated shortlist of pre-vetted annotators.
Add to Your Custom Tool
Review proposals, hire directly, and invite your new team into your Your Custom Tool workspace — no extra onboarding needed.
Manage & Pay
Manage tasks, communication, and payouts through OpenTrain while work happens in Your Custom Tool.
One Place to Hire and Manage Your Annotation Team
OpenTrain brings hiring, communication, and payments together in one place while your team works inside your internal systems.
Post a Job
Create an account and post your first job in minutes. Describe your project requirements, set your rate, and start receiving proposals from qualified candidates.
Post a Job
Create an account and post your first job in minutes. Describe your project requirements, set your rate, and start receiving proposals from qualified candidates.
Review Pre-Vetted Proposals
Every candidate is screened through AI-powered vetting and interviews before being matched to your job. Review your shortlist, message candidates, and choose the best fit.
Review Pre-Vetted Proposals
Every candidate is screened through AI-powered vetting and interviews before being matched to your job. Review your shortlist, message candidates, and choose the best fit.
Hire and Add to Your Tool
Once you've selected your hires, invite them to your internal tool using whatever access method you have in place. Your existing workflows and data stay exactly as they are.
Hire and Add to Your Tool
Once you've selected your hires, invite them to your internal tool using whatever access method you have in place. Your existing workflows and data stay exactly as they are.
Communicate and Manage Work
Use built-in chat and a collaborative instruction editor to keep annotation guidelines current and projects organized.
Communicate and Manage Work
Use built-in chat and a collaborative instruction editor to keep annotation guidelines current and projects organized.
Pay Securely in One Place
Handle global payments from a single dashboard. No chasing invoices or juggling multiple payment methods.
Pay Securely in One Place
Handle global payments from a single dashboard. No chasing invoices or juggling multiple payment methods.
Staff Your Your Custom Tool Projects Today
Hire pre-vetted Your Custom Tool annotators yourself, or let our team build and manage your entire Your Custom Tool workforce.
Post a Your Custom Tool Job, Hire Your Custom Tool Experts
Describe your Your Custom Tool project and get a curated shortlist of pre-vetted annotators with Your Custom Tool experience. 15% flat fee.
Full-Service Your Custom Tool Team
- Recruiting & live vetting
- Onboarding & training
- Daily management & QA
- Dedicated program lead
Build a career training the world's top AI models.
Freelance AI Trainer?
Join 124,000+ freelancers
Data Labeling Company?
Find clients and recruit talent
Pre-Vetted Your Custom Tool Experts You Can Trust
Every Your Custom Tool annotator on OpenTrain is verified through live interviews and proctored skills testing — not just AI screening. Choose from 124,000+ pre-vetted experts across 180+ countries.
Pre-Vetted Experts
Countries
Languages
Platforms
The Network
The only talent network purpose-built for Your Custom Tool and AI training.
Your Custom Tool Specialists, Not Crowd Workers
Experienced annotators who know Your Custom Tool inside and out. Matched to your project requirements, not pulled from a generic applicant pool.
Global Coverage, Any Language
Native speakers across 180+ countries and 110+ languages. Build a Your Custom Tool team in any region or timezone.
AI-Powered Matching
Candidates screened and ranked for Your Custom Tool experience, domain expertise, and language skills. You review only qualified matches.
Proven at Scale
From 5-person pilots to 500-person production teams. Companies trust OpenTrain to staff their Your Custom Tool projects at any scale.
We Recruit, Train, and Manage Your Your Custom Tool Team
A dedicated team working directly in your Your Custom Tool account. We handle recruiting, training, QA, and daily ops.
Live Proctored Testing
Proctored skills tests for every Your Custom Tool candidate. Human-watched, no ChatGPT.
Live Interviews
Your Custom Tool experience verified face-to-face by trained interviewers.
Custom Calibration
Custom tests built for your Your Custom Tool project and annotation standards.
Your Custom Tool + OpenTrain FAQ
Common questions about hiring Your Custom Tool annotators through OpenTrain.
