Models / NVIDIA
Nemotron 3 Ultra 550B API pricing
$1.50 in, $1.50 out per million tokens.
nemotron-3-ultra-550b-a55bmanaged routeOpenAI SDK
Price · per million tokens, USD
| Tokens | NVIDIA list price | UplinkSwitch | Saving |
|---|---|---|---|
| Input | — | $1.50 | — |
| Cached input | — | $1.50 | — |
| Output | — | $1.50 | — |
No list price on record. Same price on every host.
Real-model check: Same fingerprint since Oct 13
Nemotron 3 Ultra 550B specs
- Context window
- 1,048,576 tokens
- Input
- text
- Released
- June 4, 2026
Nemotron 3 Ultra 550B API · base URL and key
Python · OpenAI SDK
from openai import OpenAI
client = OpenAI(
base_url="https://api.uplinkswitch.com/v1",
api_key="sk-uplink-live-...",
)
completion = client.chat.completions.create(
model="nemotron-3-ultra-550b-a55b",
messages=[{"role": "user", "content": "Summarize this in one line."}],
)
print(completion.choices[0].message.content)TypeScript · OpenAI SDK
import OpenAI from 'openai';
const client = new OpenAI({
baseURL: 'https://api.uplinkswitch.com/v1',
apiKey: 'sk-uplink-live-...',
});
const completion = await client.chat.completions.create({
model: 'nemotron-3-ultra-550b-a55b',
messages: [{ role: 'user', content: 'Summarize this in one line.' }],
});
console.log(completion.choices[0].message.content);curl
curl https://api.uplinkswitch.com/v1/chat/completions \
-H "authorization: Bearer sk-uplink-live-..." \
-H "content-type: application/json" \
-d '{"model":"nemotron-3-ultra-550b-a55b","messages":[{"role":"user","content":"Hello"}]}'What would it cost? · paste a prompt, priced before you send it
Input is counted at about 4 characters per token.
Cheapest first. A real request is billed on the provider's own token count. Same estimate as JSON: POST https://api.uplinkswitch.com/v1/estimate, no key needed.
More from NVIDIA
Nemotron 3 Ultra 550B questions
- What is Nemotron 3 Ultra 550B?
- Nemotron 3 Ultra 550B is a model from NVIDIA, released June 4, 2026, with a 1,048,576-token context window, taking text input. Through UplinkSwitch it answers the OpenAI SDK on one key as nemotron-3-ultra-550b-a55b.
- How much does the Nemotron 3 Ultra 550B API cost?
- $1.50 per million input tokens and $1.50 per million output tokens, with cached input at $1.50.
- Is Nemotron 3 Ultra 550B free?
- It is pay as you go: prepaid credit from $10, with no subscription or monthly fee, billed per token. A 1,000-token prompt with a 500-token reply costs about $0.0023.
- What is the Nemotron 3 Ultra 550B context window?
- Nemotron 3 Ultra 550B has a 1,048,576-token context window. It takes text input.
- What is the Nemotron 3 Ultra 550B model id?
- nemotron-3-ultra-550b-a55b. Send it as the model through the OpenAI SDK with base URL https://api.uplinkswitch.com/v1.
- How do I get a Nemotron 3 Ultra 550B API key?
- Create one in the console at uplinkswitch.ai/console: prepaid credit from $10, no subscription, and the key is live at once. The same key calls Nemotron 3 Ultra 550B and every other model in the catalog; send it as the bearer token with base URL https://api.uplinkswitch.com/v1.
- Is it the real Nemotron 3 Ultra 550B?
- Every day each model gets the same test prompt, and a model always counts that prompt the same way; a swapped one would not. Nemotron 3 Ultra 550B's latest result: Same fingerprint since Oct 13.