Enterprise DNA
L Models Long context

Nemotron 3 Ultra

by 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 m

Visit NVIDIA Submit your build →
N3

Models

Nemotron 3 Ultra

Added 10 July 2026

#nvidia

Overview

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...

How to use / API access

Call via OpenRouter with model id `nvidia/nemotron-3-ultra-550b-a55b`.

  • openrouter · nvidia/nemotron-3-ultra-550b-a55b Docs

OpenRouter id: nvidia/nemotron-3-ultra-550b-a55b

Benchmarks

  • Intelligence Index (artificial-analysis) : 37.8 index
  • Coding Index (artificial-analysis) : 49.3 index
  • Agentic Index (artificial-analysis) : 27.4 index
  • Design Arena 3d (other) : 1213 elo · #42
  • Design Arena asciiart (other) : 1117 elo · #44
  • Design Arena codecategories (other) : 1166 elo · #62
  • Design Arena dataviz (other) : 1150 elo · #65

Notes

Nemotron 3 Ultra is listed in the EDNA Models directory from the OpenRouter catalogue.

← Back to Models Submit your own entry →