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NVIDIA-Nemotron-3-Ultra-550B-A55B (NVFP4)

nemotron family · launched 2026-06-04

ReasoningToolsStructuredOpen weights
AITopic score56.0#75 overall

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...

Evidence coverage5%1 evaluations · 1 institutions
Context / maximum output202.8k / 182.5ktokens
Cache / input / output$0.08 · $0.4 · $1.76USD per million tokens
Value / freshness62.5 / 69relative value · release freshness
Product profile

What this model supports

Inputtext
Outputtext
Knowledge cutoff2025-09
WeightsOpen weights
Capability profile

Strengths by domain

Coding—0 public results
Research & reasoning—0 public results
Professional work—0 public results
Knowledge & instruction—0 public results
Behind the score

Every result has a source

Raw results and standardized readings are shown together. Missing tests add neither points nor penalties.

Human preference & indices2 results

AA IndexArtificial Analysis64.24 indexReading 56.0

Imported from Artificial Analysis. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: NVIDIA-Nemotron-3-Ultra-550B-A55B (NVFP4)Open evidence
Arena TextLMArena1,445.2 EloReading 56.0

Direct LMArena text leaderboard result.

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