Nemotron 3 Ultra 550B A55B

nemotron

OpenRouter · nvidia/nemotron-3-ultra-550b-a55b

Capabilities

Tool CallYes

ReasoningYes

Structured OutputYes

Temperature ControlYes

AttachmentsNo

Open WeightsYes

Input

text

Output

text

Input$0.50

Output$2.20

Cache Read$0.10

Direct installation coming soon — March 2026

ProviderOpenRouter

Model IDnvidia/nemotron-3-ultra-550b-a55b

Familynemotron

Release Date2026-06-04

Last Updated2026-06-04

Context262K

Max Output16K

@openrouter/ai-sdk-provider