nvidia-nemotron-3-ultra
NVIDIA/Open weights/1 provider
NVIDIA Nemotron 3 Ultra is NVIDIA's strongest open-weights reasoning model, positioned near GPT-5.4 Mini (xhigh) and ahead of DeepSeek V4-Flash and Qwen3.5-397B-A17B.MoreLess
Which id to call
nvidia-nemotron-3-ultraRequesty routes this id across every provider serving nvidia-nemotron-3-ultra, picking on price and health and failing over automatically. The id stays valid when a provider changes underneath it.
From /1M input
$0.37
Doubleword
Context
262K
131K output
Endpoints
2
1 region
Price spread
1.4x
2 endpoints
Capabilities 1/8
2 endpoints / 1 region
Providers serving nvidia-nemotron-3-ultra
Provider prices, per 1M tokens. Pay as you go adds 5%, or 0% on your own keys.
| Rank | Privacy | |||||
|---|---|---|---|---|---|---|
| 1 |  Doubleword | Global | 262K | $0.37 | $1.87 | no-train |
| 2 | Doubleword | Global | 262K | $0.50 | $2.50 | no-train |
A column is blank where no qualifying sample exists, and every row links to that provider's endpoint page.
model=
Which id to call
One base url, https://router.requesty.ai/v1, and one key for every id here.
nvidia-nemotron-3-ultraRequesty routes this id across every provider serving nvidia-nemotron-3-ultra, picking on price and health and failing over automatically. The id stays valid when a provider changes underneath it.
OpenAI compatible
Call it in three lines
Change the base url, use your Requesty key, set the model to any id on the left. Existing OpenAI SDK code needs no other edit.
123456789101112131415from openai import OpenAI client = OpenAI( api_key="YOUR_REQUESTY_API_KEY", base_url="https://router.requesty.ai/v1", ) response = client.chat.completions.create( model="nvidia-nemotron-3-ultra", messages=[ {"role": "user", "content": "Explain quantum computing in one paragraph."}, ], ) print(response.choices[0].message.content)
Artificial Analysis
Benchmark scores
Artificial Analysis Coding Index: a composite of coding evaluations including LiveCodeBench, SciCode and Terminal-Bench.
Graduate-level physics, chemistry & biology questions designed to resist Googling.
Artificial Analysis Intelligence Index: a composite of multiple evaluations measuring overall model capability.
Scores from artificialanalysis.ai. They measure the model, not the provider, so they are the same on every endpoint above.
6
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nemotron-3-ultra-nvfp4
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nemotron-3-nano-omni-30b-a3b-reasoning
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Reference
nvidia-nemotron-3-ultra questions
Which providers serve nvidia-nemotron-3-ultra?
nvidia-nemotron-3-ultra is available from 1 provider through Requesty: Doubleword. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does nvidia-nemotron-3-ultra cost?
Pricing starts at $0.37 per million input tokens and $1.87 per million output tokens on Doubleword, the cheapest endpoint. Prices vary by provider and region; the table above shows every endpoint. Those are the upstream provider rates: pay as you go adds 5% on top, or 0% if you bring your own provider keys.
Is nvidia-nemotron-3-ultra open weights?
Yes. nvidia-nemotron-3-ultra is an open-weights model from NVIDIA, which is why multiple inference providers can host it. Provider choice affects price, latency, and data-privacy terms, all compared above.
What is the context window of nvidia-nemotron-3-ultra?
nvidia-nemotron-3-ultra supports up to 262K tokens of context, with up to 131K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
How do I use nvidia-nemotron-3-ultra with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "nvidia-nemotron-3-ultra" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.
Should I call nvidia-nemotron-3-ultra by its managed id or a provider id?
Use the managed id, "nvidia-nemotron-3-ultra". Requesty picks which of the 1 provider serves each request based on price and health, and fails over when one degrades, so the id keeps working while the routing changes underneath it. Send a provider id like "doubleword/nvidia-nemotron-3-ultra:flex" only when you need one specific deployment and want no failover.
Route nvidia-nemotron-3-ultra through one endpoint
One key for 1 provider on this model and 600+ others. No markup on provider prices, automatic failover, caching built in.