Nemotron 3 Ultra
by NVIDIAnvidia/nemotron-3-ultra-550b-a55b
LLMCompare cannot run Nemotron 3 Ultra yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowNemotron 3 Ultra at a glance
- Context length
- 262,144 tokens
- Maximum output
- 182,520 tokens
- Accepts
- Text
- Returns
- Text
- Features
- ReasoningJSON outputTool callingPrompt caching
- Reasoning effort levels
highmediumnoneReasoning can be turned off.- Released
- 4 Jun 2026
- Knowledge cutoff
- Not published
Model facts synced from the OpenRouter model list on 21 Oct 2026.
Nemotron 3 Ultra pricing by route
A route is the service LLMCompare calls to reach the model. Nemotron 3 Ultra has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $0.60 | $2.40 | $0.12 | openrouter.ai/nvidia/nemotron-3-ultra-550b-a55b |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to Nemotron 3 Ultra costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
Billed in addition to the output tokens.
- Cost per call
- $0.0018
- 3 credits
- Cost of 100 calls
- $0.18
- 300 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
temperature | Number | 0 to 2in steps of 0.1 | Provider default |
top_p | Number | 0 to 1in steps of 0.05 | Provider default |
max_tokens | Integer | 1 to 182,520 | Provider default |
reasoning_effort | One of | highmediumnone | high |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
About Nemotron 3 Ultra
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...
Description as published for this model. LLMCompare has not edited it.
Models to compare with Nemotron 3 Ultra
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
Nemotron 3.5 Super VLNVIDIAnvidia/nemotron-3.5-super-vl | 1.05M | 236k | $0.15 | $0.50 | JSONToolsCacheVision | No route yet | ||
Nemotron 3 SuperNVIDIAnvidia/nemotron-3-super-120b-a12b | 262k | 236k | $0.08 | $0.45 | ReasoningJSONTools | No route yet | ||
Nemotron 3.5 Content SafetyNVIDIAnvidia/nemotron-3.5-content-safety | 131k | 118k | $0.20 | $0.20 | Vision | No route yet | ||
Seed 2.1 TurboByteDance Seedbytedance-seed/seed-2-1-turbo | 262k | 236k | $0.50 | $2.50 | JSONToolsVision | No route yet | ||
Grok Build 0.1SpaceXAIx-ai/grok-build-0.1 | 256k | 230k | $1.00 | $2.00 | JSONToolsCacheVision | No route yet | ||
Kimi K2.5MoonshotAImoonshotai/kimi-k2.5 | 262k | 236k | $0.50 | $2.50 | JSONToolsCacheVision | No route yet |
Questions about Nemotron 3 Ultra
- How much does Nemotron 3 Ultra cost?
- On the OpenRouter route, Nemotron 3 Ultra costs $0.60 per 1 million input tokens and $2.40 per 1 million output tokens, in US dollars. Input tokens that Nemotron 3 Ultra reads from the prompt cache cost $0.12 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of Nemotron 3 Ultra?
- Nemotron 3 Ultra has a context length of 262,144 tokens and returns up to 182,520 output tokens in one call.
- What inputs does Nemotron 3 Ultra accept?
- Nemotron 3 Ultra accepts these inputs: Text. Nemotron 3 Ultra returns: Text.
- Which reasoning effort levels does Nemotron 3 Ultra support?
- Nemotron 3 Ultra supports these reasoning effort levels: high, medium, none. Reasoning can be turned off for Nemotron 3 Ultra.
- Can I test Nemotron 3 Ultra on my own data?
- Not yet. LLMCompare lists the prices and parameters of Nemotron 3 Ultra, but no route to Nemotron 3 Ultra is configured on LLMCompare, so it cannot be selected for an evaluation.