Image Annotation Services on the #1 AI Training Network
Outsource image annotation services to a tool-neutral network of 100,000+ vetted Data Labelers — bounding boxes, polygons, keypoints, classification, and attributes. Post a job and hire directly, or run it managed end-to-end. Works in any annotation platform.
Data Labeling Solutions / Image Annotation jobs are matched through platform-native screens and expert validation.
The easiest way to find expert image annotators for any data labeling platform.
Experienced Annotators
Experienced with bounding boxes, polygons, keypoints, classification, and more
Any Tooling
Work in your annotation software, internal tools, or custom platform
Global Scale
Staff projects of any size from a worldwide network
Hire for Any Image Annotation Tool
Have your own tooling? Our talent works directly in your platform.
Pre-Vetted Experts
Countries
Languages
How OpenTrain Works for Image Annotation
Post a Job and Receive Pre-Screened Applicants
Describe your annotation tasks, label types, and quality requirements. Receive proposals from Data Labelers with relevant experience.
Hire and Add to Your Tooling
Review candidates, make your hires, and invite them to your annotation platform or custom tooling.
Communicate and Pay in One Place
Share guidelines, message your team, and handle global payments from a single dashboard.
Start Building Your Image Annotation Team Today
Post your first job and connect with experienced Data Labelers who can deliver accurate, consistent labels at any scale.
Post Your Image Annotation Job
Describe your requirements and receive a curated shortlist of domain experts matched to your project. 15% flat fee, no hidden markups.
Full-Service, End-to-End
- 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 192,000+ freelancers
Data Labeling Company?
Find clients and recruit talent
Hit 97% Accuracy Without Months of Ramp-Up
Most annotation teams take weeks to reach production quality on new class hierarchies. Our annotators arrive pre-trained on complex labeling tasks — bounding boxes, polygons, keypoints, segmentation — so your first batch meets quality targets.
FAQs About Hiring for Image Annotation
Short answers to common questions about image annotation on OpenTrain.