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 $0.5000/M input and $2.50/M output, routed automatically to the cheapest healthy provider. NVIDIA · 1,000,000 token context. No inference markup.
NVIDIA Nemotron 3 Ultra 550B pricing & providers
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| Surplus Intelligencebest | $0.5000 | $2.50 |
| OpenRouter | $0.6000 | $3.60 |
How to use NVIDIA Nemotron 3 Ultra 550B with the OpenAI SDK
Already using OpenAI or OpenRouter? 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.
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 costs from $0.5000 per million input tokens and $2.50 per million output tokens through UberLLM, which routes to the cheapest healthy provider. There is no inference markup.
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.