NVIDIA: Nemotron 3 Ultra

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

Nemotron 3 Ultra is an open-weight heavyweight from NVIDIA — 550B parameters with 55B active per token, ranking #110 of 261 on the TryAii Score. It's strongest on head-to-head chat (#40 on Chatbot Arena Elo). API pricing starts at $0.6/$2.4 per million input/output tokens, though similar scores now sell for about $1.5 per million output tokens, with 3 independent hosts serving it.

Prompt $/1M

$0.600

Completion $/1M

$2.400

Context

262,144 tok

Best provider

97 tok/s · BaseTen

Specs

Model id: nvidia/nemotron-3-ultra-550b-a55b
Display name: NVIDIA: Nemotron 3 Ultra
Modality: text->text
Tokenizer: Other
Instruct type: —
Context length: 262,144
Max completion: 182,520
Prompt $/1M: $0.600
Completion $/1M: $2.400
Free tier: no

Capabilities

Function callingno
JSON modeno
System promptno
Visionno
Moderatedno

Benchmark scores

Each axis is one benchmark, normalized to the best model in the field.

No benchmark data for this model.

Speed by provider

Provider	tok/s	TTFT	Total latency
BaseTen	97	329 ms	398 ms
DeepInfra	39	1,915 ms	2,426 ms
Venice	32	1,951 ms	2,656 ms