NVIDIA
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
Running this yourself: likely needs a high-memory cloud gpu.
30.7
Quality Score
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Arena ELO
550B
Parameters
512K
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has official provider benchmark evidence, but not a normalized independent benchmark table yet.
A full normalized benchmark row is not available for this model yet.
Official benchmark evidence is already available below, so this release is still being tracked while the normalized table catches up.
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Jun 2026
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
Models | Try NVIDIA NIM APIs
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View sourceModels | Try NVIDIA NIM APIs
Create an Account 2 Generate API Key 3 Make your first API call 4 Prototype in your environment 5 Connect to inference partners Resources Developer Forums Contact Support FAQs Login Terms of Use Privacy Policy Your Privacy Choices Contact Copyright © 2026 NVIDIA Corporation Models Deploy and scale models on your GPU infrastructure of choice with NVIDIA NIM inference microservices Optimized by NVIDIA Launch from Hugging Face Beta Filters Free Endpoint 57 Partner Endpoint 28 Do
View source