NVIDIA breaks down the open Nemotron post-training pipeline: Data Designer, Gym, and RL

NVIDIA Developer · youtube · 2026-09-13

NVIDIA researchers explain how Nemotron 3 checkpoints were built via post-training using NeMo Data Designer (synthetic datasets), NeMo Gym (training environments), and NeMo RL (reinforcement learning). Datasets are on HuggingFace and recipes/weights are openly licensed on GitHub for community reuse.

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