Platform Overview
Hire, manage, and pay top AI Trainers & Data Labelers in one place while working in the tools you already use
Find Data Labeling Vendors
Browse vetted agencies and BPOs for large-scale projects.
List your data labeling company
Create a free company profile, receive matched RFPs, and submit proposals with your pricing, capacity, and timeline.
JOIN AS Freelancer
The #1 Platform for Finding AI Training Jobs
We bring AI training and data labeling jobs from 20+ platforms into one place.
Work With Us
Hire Freelancers
Post a Job to the #1 Network for AI Training Talent Now
Post your job and find pre-vetted AI Trainers & Data Labelers across any domain, language, or tool.
FOR LARGE PROJECTS / MANAGED SERVICE
Done-for-You AI Data Teams
For large or complex projects. We recruit, train, manage, and QA your team inside your tools.
JOIN AS Freelancer
The #1 Platform for Finding AI Training Jobs
We bring AI training and data labeling jobs from 20+ platforms into one place.
LLM & Agents
View All LLM & Agent Solutions
Structured Data Labeling
View Data Labeling Solutions
Work With Us
Hire Freelancers
Post a Job to the #1 Network for AI Training Talent Now
Post your job and find pre-vetted AI Trainers & Data Labelers across any domain, language, or tool.
FOR LARGE PROJECTS / MANAGED SERVICE
Done-for-You AI Data Teams
For large or complex projects. We recruit, train, manage, and QA your team inside your tools.
Work With Us
Hire Freelancers
Post a Job to the #1 Network for AI Training Talent Now
Post your job and find pre-vetted AI Trainers & Data Labelers across any domain, language, or tool.
FOR LARGE PROJECTS / MANAGED SERVICE
Done-for-You AI Data Teams
For large or complex projects. We recruit, train, manage, and QA your team inside your tools.
OpenTrain Research Tools
Human Feedback and Eval Paper Explorer
A focused feed for RLHF, preference data, rater protocols, agent evaluation, and LLM-as-judge research. Every paper includes structured metadata for quick triage.
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Protocol Hubs
Expert Verification Papers (25)
CS.CL + Expert Verification Papers (20)
Pairwise Preference Papers (70)
CS.CL + Pairwise Preference Papers (62)
CS.AI + Expert Verification Papers (15)
CS.AI + Pairwise Preference Papers (42)
Rubric Rating Papers (17)
CS.CL + Rubric Rating Papers (16)
General + Pairwise Preference Papers (43)
Expert Verification Or Rubric Rating Papers (39)
CS.CL + Math Papers (84)
Long Horizon Papers (82)
CS.CL + Human Eval Papers (35)
CS.CL + Long Horizon Papers (58)
Expert Verification + Medicine Papers (11)
Human Eval Papers (38)
Benchmark Hubs
- Retrieval Benchmark Papers (115)
- Retrieval Benchmark Papers (Last 365 Days) (111)
- Retrieval Or GSM8K Benchmark Papers (128)
- Retrieval Or MMLU Benchmark Papers (128)
- Retrieval Or MATH Benchmark Papers (135)
- Retrieval Or DROP Benchmark Papers (129)
- Retrieval Or MMLU Or GSM8K Benchmark Papers (139)
- Retrieval Or MATH Or GSM8K Benchmark Papers (148)
- Retrieval Or MATH Or MMLU Benchmark Papers (146)
- Retrieval Or DROP Or GSM8K Benchmark Papers (141)