OpenTrain AI
OpenTrain AI is a global marketplace connecting vetted human AI data experts with managed labeling services. It simplifies sourcing quality training data by offering direct hiring, flexible workflows, and secure payments worldwide.
About OpenTrain AI
OpenTrain AI is an international freelance marketplace that connects users with vetted human data experts and integrates with any annotation tool. It enables organizations to hire specialized AI trainers directly, reducing costs and maintaining control over data workflows. The platform supports secure global payments, offers flexible project management, and provides a fully-managed service where in-house experts handle end-to-end AI data labeling projects. Whether sourcing freelance professionals or outsourcing entire projects, OpenTrain AI streamlines the process of building high-quality training datasets.
How to Use
Create an account on OpenTrain AI, then post your data annotation project, with options for anonymous posting. Receive proposals from vetted freelance AI trainers and outsourcing providers. Review and select suitable experts, assign tasks, and invite them to your preferred data labeling software. Fund projects via escrow with credit card or bank transfer, releasing payments upon approval. Alternatively, request a quote for the fully-managed service, where OpenTrain AI's team manages the entire data labeling process.
Features
- Hire and manage vetted freelance human data experts directly
- Secure global payments with escrow and milestone funding
- Seamless integration with your preferred data labeling tools
- One platform for sourcing freelancers and outsourcing providers
- Access to domain-specific AI trainers for diverse annotation needs
- Option for fully-managed AI data labeling services
- Global marketplace with over 40,000 vetted AI professionals across 110+ countries
Use Cases
- Creating high-quality datasets for AI training
- Video and image annotation tasks
- 3D point cloud data labeling
- Time series data annotation
- Medical and healthcare data labeling
- Reinforcement learning from human feedback (RLHF)
- Reasoning, planning, and complex data annotation
- Preparing data for fine-tuning AI models
- Generating training data for large language models and generative AI
- Geospatial and mapping data labeling
- Coding and STEM data annotation
- Robotics sensor data labeling
- Image and visual data annotation
Best For
Pros
- Significant cost savings, up to 60% or more compared to other providers
- Access to a global pool of over 40,000 vetted AI trainers across 110+ countries
- Flexible options for self-managed freelance hiring or fully-managed projects
- Directly hire qualified experts at scale
- Source domain-specific and native language annotators
- Secure, flexible payments with escrow and milestone funding
- Transparent pricing for managed services
- Work with any data labeling software, maintaining workflow control