Integrations

Hire Expert Annotators for Any Tool

Post a job and hire from 196,000+ pre-vetted AI Trainers and Data Labelers directly into your annotation platform - Label Studio, CVAT, Encord, or your own custom tool.

Post a Job Get a Managed Quote

Your Custom Tool

Your Custom Tool

Your Custom Tool

Your Custom Tool

Datature

Datature

Datature

Datature

Your Custom Tool

Your Custom Tool

Your Custom Tool

Your Custom Tool

Using your own tool? See how OpenTrain plugs vetted AI Trainers and Data Labelers into custom annotation, evaluation, training, and internal review software. Tool-neutral by design.

Multimodal

Full-stack annotation platforms supporting image, video, text, audio, and 3D point cloud labeling.

Open-source labeling for vision, text, and audio.

Data labeling tooling inside AWS.

Labeling workflows and dataset tools.

Vision and audio annotation platform.

Data engine and annotation for CV and NLP.

Kili Technology

Multimodal labeling with QA and analytics.

Vision

Specialized tools for image and video annotation — bounding boxes, segmentation masks, keypoints, and more.

Vision dataset management and labeling.

Open-source computer vision annotation tool.

Annotation and active learning for vision.

Computer vision labeling and tooling.

Vision pipeline with integrated labeling.

Text

NLP-focused platforms for text classification, NER, relation extraction, and document annotation.

Open platform for NLP data curation and labeling.

Text and NLP labeling with enterprise workflows.

Programmatic

Code-first and programmatic labeling tools for teams that prefer scripting over GUI annotation.

Programmatic data labeling and curation.

Scriptable annotation for NLP and CV.

Custom

Bring your own tool. OpenTrain talent works in any software — proprietary, internal, or custom-built.

Your Custom Tool

Invite talent into your internal platform.

FAQ

Frequently Asked Questions

Common questions about hiring annotators for your data labeling tools.