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.
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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 (23)
CS.CL + Pairwise Preference Papers (56)
Pairwise Preference Papers (64)
CS.AI + Pairwise Preference Papers (39)
General + Pairwise Preference Papers (38)
CS.CL + Expert Verification Papers (18)
Automatic Metrics + Pairwise Preference Papers (51)
Expert Verification Or Rubric Rating Papers (36)
CS.CL + Medicine Papers (52)
Automatic Metrics + Expert Verification Papers (19)
Human Eval Papers (36)
CS.CL + Math Papers (71)
CS.CL + Human Eval Papers (33)
Long Horizon Papers (74)
Critique Edit Or Expert Verification Papers (41)
Automatic Metrics + General + Pairwise Preference Papers (29)
Benchmark Hubs
- Retrieval Benchmark Papers (101)
- Retrieval Benchmark Papers (Last 365 Days) (97)
- Retrieval Or MATH Benchmark Papers (131)
- Retrieval Or GSM8K Benchmark Papers (113)
- Retrieval Or MMLU Benchmark Papers (114)
- Retrieval Or DROP Benchmark Papers (114)
- Retrieval Or MATH Or GSM8K Benchmark Papers (140)
- Retrieval Or MATH Or MMLU Benchmark Papers (142)
- Retrieval Or MMLU Or GSM8K Benchmark Papers (124)
- Retrieval Or MATH Or DROP Benchmark Papers (144)