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OpenKey

Nemotron 3 Super

NVIDIAReleased Mar 11, 2026

NVIDIA Nemotron 3 Super is a 120B-parameter open hybrid MoE model, activating just 12B parameters for maximum compute efficiency and accuracy in complex multi-agent applications. Built on a hybrid Mamba-Transformer...

Try in playground
Context window
1M tokens
Max output
16K tokens
Input
text
Output
text
Tokenizer
Other
Released
Mar 11, 2026
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.085$0.0026$0.088
Output$0.400$0.012$0.412

Benchmarks

Artificial Analysis

Intelligence index
25.4
Coding index
37.7
Agentic index
8.7

Supported parameters

  • frequency_penalty
  • include_reasoning
  • logit_bias
  • logprobs
  • max_tokens
  • min_p
  • presence_penalty
  • reasoning
  • repetition_penalty
  • response_format
  • seed
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_k
  • top_logprobs
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model nvidia/nemotron-3-super-120b-a12b.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-3-super-120b-a12b",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="nvidia/nemotron-3-super-120b-a12b",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "nvidia/nemotron-3-super-120b-a12b",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Nemotron 3 Super cost via API?
Through OpenKey, Nemotron 3 Super costs $0.088 per 1M input tokens and $0.412 per 1M output tokens. That is the provider price ($0.085 / $0.400) plus a flat 3% fee — nothing else.
What is Nemotron 3 Super's context window?
Nemotron 3 Super accepts up to 1M tokens of context and returns up to 16K tokens per request.
Is Nemotron 3 Super OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "nvidia/nemotron-3-super-120b-a12b" using any OpenAI SDK — only the base URL and API key change.
What inputs does Nemotron 3 Super support?
Nemotron 3 Super accepts text input and produces text output.

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