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NVIDIA Nemotron 3 Ultra 550B API

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

Call NVIDIA Nemotron 3 Ultra 550B through UberLLM’s OpenAI-compatible API — from $0.0055/M input and $0.0275/M output, routed automatically to the cheapest healthy seller. NVIDIA · 1,000,000 token context. Fee included.

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NVIDIA Nemotron 3 Ultra 550B pricing

Price now · per 1M tokens
Input
$0.0055
Output
$0.0275
Cached input
$0.000825
% off list
99% off
List price · per 1M tokens
Input
$0.6875
Output
$3.4375
Cached input
$0.2063
Providers and their list prices, per 1M tokens
ProviderInputOutput
Fireworks AI$0.50$2.50
Jatevo$0.50$2.50

UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.

How to use NVIDIA Nemotron 3 Ultra 550B with the OpenAI SDK

Already using the OpenAI SDK? Change one line — the base URL — and call NVIDIA Nemotron 3 Ultra 550B with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.

python
from openai import OpenAI

client = OpenAI(
    base_url="https://api.uberllm.dev/v1",
    api_key="ull_your_key_here",
)

resp = client.chat.completions.create(
    model="nvidia/nemotron-3-ultra-550b-a55b",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

NVIDIA Nemotron 3 Ultra 550B API — FAQ

How much does the NVIDIA Nemotron 3 Ultra 550B API cost?

NVIDIA Nemotron 3 Ultra 550B is listed from $0.0055 per million input tokens and $0.0275 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.

How do I call NVIDIA Nemotron 3 Ultra 550B via API?

Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "nvidia/nemotron-3-ultra-550b-a55b". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.

Is NVIDIA Nemotron 3 Ultra 550B OpenAI-compatible on UberLLM?

Yes. Every model on UberLLM — including NVIDIA Nemotron 3 Ultra 550B — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.

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