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NVIDIA: Nemotron 3 Super

nvidia/nemotron-3-super-120b-a12b
textReasoning
NVIDIA open 120B model activating just 12B parameters (hybrid Mamba-Transformer MoE) — high compute efficiency and accuracy in complex multi-agent applications. Adjustable reasoning depth, 1M context.
Price in / out
Cache, read / write
Context / Max output
262K / 236K
Released
Mar 11, 2026

Parameters

messagesrequired
reasoning_effortoff · low · medium
max_tokensoptional · alias max_completion_tokens
streamtrue · false
toolsfunction calling (OpenAI format)
tool_choiceauto · none · required
response_formatjson_object · json_schema
web_search · · ·
providerrouting: order · only · ignore · sort
stream_options{"include_usage": true}
Fine-tuning · 11
temperature0–2
stopoptional
seedoptional
top_p0–1
top_koptional
min_p0–1
frequency_penalty−2…2
presence_penalty−2…2
repetition_penalty0–2
logprobstrue · false
top_logprobs0–20

How to use via API

from openai import OpenAI

client = OpenAI(base_url="https://api.mixen.ai/v1", api_key="mxn-...")
resp = client.chat.completions.create(
    model="nvidia/nemotron-3-super-120b-a12b",
    messages=[{"role": "user", "content": "Привет"}],
    reasoning_effort="low",  # off · low · medium
    temperature=0.7,
    max_tokens=1024,
    stream=False,
)
print(resp.choices[0].message.content)

# Стриминг: stream=True — ответ приходит чанками
for chunk in client.chat.completions.create(
    model="nvidia/nemotron-3-super-120b-a12b",
    messages=[{"role": "user", "content": "Привет"}],
    stream=True,
):
    print(chunk.choices[0].delta.content or "", end="", flush=True)
API docsTry in the bot