NVIDIA released Nemotron 3 Nano 30B A3B with an explicitly open evaluation approach to make that distinction clear. Alongside the model card, we are publishing the complete evaluation recipe used to generate the results, built with the NVIDIA NeMo Evaluator library, so anyone can rerun the evaluation pipeline, inspect the artifacts, and analyze the outcomes independently.

We believe that open innovation is the foundation of AI progress. This level of transparency matters because most model evaluations omit critical details. Configs, prompts, harness versions, runtime settings, and logs are often missing or underspecified, and even small differences in these parameters can materially change results. Without a complete recipe, it’s nearly impossible to tell whether a model is genuinely more intelligent or simply optimized for a benchmark.

This blog shows developers exactly how to reproduce the evaluation behind Nemotron 3 Nano 30B A3B using fully open tools, configurations, and artifacts. You’ll learn how the evaluation was run, why the methodology matters, and how to execute the same end-to-end workflow using the NeMo Evaluator library so you can verify results, compare models consistently, and build transparent evaluation pipelines of your own.

Developers and researchers need evaluation workflows they can rely on, not one-off scripts that behave differently from model to model. NeMo Evaluator provides a unified way to define benchmarks, prompts, configuration, and runtime behavior once, then reuse that methodology across models and releases. This avoids the common scenario where the evaluation setup quietly changes between runs, making comparisons over time difficult or misleading.

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