Miju LabsWhy they are on the map
HelpSteer3 co-author; Nemotron 3 post-training source — evidence dated 2025-12
Shapes what 'good data' means.
How NVIDIA (Nemotron / Cosmos) buys data
HelpSteer3-Preference (2025) used 6,400+ annotators in 77 countries sourced/managed by Scale AI (general, STEM, code with degree/SWE bars) and Translated (multilingual). Nemotron 3 report (Dec 2025) lists dedicated Data, Post-training, Evaluation/Safety and Project Management groups but no annotation vendor; RL is mostly environment-based.
Nemotron post-training under Oleksii Kuchaiev (Applied Research), leadership incl. Jonathan Cohen, Bryan Catanzaro, Kari Briski; HelpSteer human-data programme run by Zhilin Wang and co-authors; 15-person project-management pool. Visual generation in Ming-Yu Liu's research group.
Known vendors: scale-ai, Translated
This person was mapped in pass 1. Career, what they have said on the record, interviews, connections, why they matter to us and how to reach them are added in pass 2.