Releasing the environment as well as the weights is the scaffolding argument applied to open source.
Development
NVIDIA open-sources Nemotron 3 with data and RL environments
Claim
NVIDIA open-sourced the Nemotron 3 family, releasing training data and RL environments alongside the weights.
Reporting date: (not necessarily the event date)
Sources
Attribution and reporting linked by this record; links do not imply independent verification.
- Welcome to December 16, 2025 (theinnermostloop.substack.com)
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