Open-source LLM (via OpenRouter)
Nemotron 3 Ultra
model
nemotron-3-ultra-550b-a55bMidStable★ Low cost in tier27.17% below the OpenRouter list price (blended input+output)fp4 precisionStreamingToolsBatchLong contextGlobal
Context
262K
Input / 1M tokens
$0.4000
Output / 1M tokens
$1.76
Cached input / 1M tokens
— (bills at input price)
Cache write / 1M tokens
— (bills at input price)
Prices checked 2026-10-31 11:51 UTC
About this model
Nemotron 3 Ultra
Nemotron 3 Ultra is available through the Anoman AI OpenAI-compatible API with a 262K-token context window. It costs $0.4000 per 1M input tokens and $1.76 per 1M output tokens, and is available from the Pro plan.
Key facts
- Context window
- 262K tokens
- Max output
- 183K tokens
- Lane
- Guarded: the provider has confirmed it does not train on your data
- Modality
- Text
- Input price
- $0.4000 per 1M tokens
- Output price
- $1.76 per 1M tokens
- Processing region(s)
- global
- Route
- Via OpenRouter
- Quantization
- Served at fp4
- Cheapest plan
- Available from the Pro plan
Code example
Chat completion with Nemotron 3 Ultra
from openai import OpenAI
client = OpenAI(
base_url="https://api.anoman.io/v1",
api_key="anm-sk-..."
)
response = client.chat.completions.create(
model="nemotron-3-ultra-550b-a55b",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)Alternatives
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