OpenReasoning Nemotron 32B

Reasoning-first post-training

NVIDIA positions the 32B Nemotron model around stronger math, code, and science reasoning rather than around a new base architecture.

Qwen2.5-derived backbone

The family stays close to a Qwen2.5 dense grouped-query backbone, so the main change is in post-training behavior and benchmark profile, not in memory geometry.

GenSelect heavy mode

The model card explicitly introduces a heavier multi-sample inference path through GenSelect, which matters because capability can scale at inference time without changing the resident model itself.

Benchmark-led release framing

NVIDIA markets the line primarily through reasoning benchmark results in its size class, so this is a capability-tuned release more than an architecture-tuned one.

Base-model inheritance

OpenReasoning-Nemotron models are NVIDIA post-training releases built directly on top of Qwen2.5 dense backbones.

Release method

The family is released as a reasoning-tuned derivative line rather than as a new architecture family with different serving mechanics.

Optional heavy mode

NVIDIA pairs the base checkpoints with GenSelect-style multi-sample inference guidance, so part of the release story lives in inference strategy rather than in the resident model alone.

Math and science reasoning

NVIDIA positions the family around benchmark-heavy reasoning workloads.

Code generation

The release emphasizes code and solution-generation performance alongside math.

Test-time scaling

GenSelect gives the family a clear path to higher-quality heavy inference when latency is less constrained.