Nvidia Nemotron Nano 9B V2

nvidia/nemotron-nano-9b-v2

A chat model with a 131K-token context window, at $0.063 per million input tokens and $0.2415 per million output tokens.

Details

Maker: nvidia
Kind: Chat
Context window: 131,072 tokens
Max output: 131,072 tokens
Input: $0.063 per million tokens
Output: $0.2415 per million tokens
Capabilities: Reasoning, tool use
Takes: Text
Returns: Text
Zero data retention: Yes, on every provider
No training on requests: Yes, on every provider
Released: 2025-08-18
Newer model: nvidia/nemotron-3.5-lightning-freeReleased later by the same maker, costs no more, and lists the same capabilities. Compare the two

Description

NVIDIA-Nemotron-Nano-9B-v2 is a large language model (LLM) trained from scratch by NVIDIA, and designed as a unified model for both reasoning and non-reasoning tasks. It responds to user queries and tasks by first generating a reasoning trace and then concluding with a final response. The model's reasoning capabilities can be controlled via a system prompt. If the user prefers the model to provide its final answer without intermediate reasoning traces, it can be configured to do so.\

Call it

curl

curl https://phantom.codes/v1/chat/completions \
  -H "Authorization: Bearer $PHANTOM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-nano-9b-v2",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Set PHANTOM_KEY to your key. Any OpenAI client works with the base URL https://phantom.codes/v1.

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