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NVIDIA · Active

nvidia-nemotron-3-ultra-550b-a55b-nvfp4

nemotron family · launched 2026-06-04

ReasoningToolsStructuredOpen weights
AITopic score57.2#45 overall

Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy

Evidence coverage3%1 evaluations · 1 institutions
Context / maximum output1M / 65.5ktokens
Cache / input / output$0.25 · $0.5 · $2.5USD per million tokens
Value / freshness65.9 / 72relative value · release freshness
Product profile

What this model supports

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

Human preference & indices2 results

AA IndexArtificial Analysis64.57 indexReading 57.2

Imported from a directly fetched third-party leaderboard.

Configuration: nvidia-nemotron-3-ultra-550b-a55b-nvfp4Open evidence
Arena TextLMArena1,444.6 EloReading 57.2

Direct LMArena text leaderboard result.

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