NVIDIA: Nemotron 3 Ultra reasoning

openrouter
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...

Capabilities

Context Window 512k tokens
Max Output 0 tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $0.60
Output $3.60
Cache Read $0.20
Cache Write -

Supported Parameters

frequency_penaltyinclude_reasoninglogit_biasmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_p

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