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Oleksii Kuchaiev

Senior Director of Applied Research; leads Nemotron post-training · NVIDIA (Nemotron / Cosmos)

high confidenceTier A · Talk to firstSecond-wave labstext

Why they are on the map

Leads Nemotron post-training teams; senior author on HelpSteer3 (Scale AI + Translated annotators) source — evidence dated 2026-09

Needs the data for a model; writes the spec.

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

Full dossier pending

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, which starts with tier A.