Ann NgAnn Ng
3 min read

Use nemotron-3-super-120b-a12b:free via OpenRouter API on TypingMind

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 Mixture-of-Experts architecture with multi-token prediction (MTP), it delivers over 50% higher token generation compared to leading open models.

The model features a 1M token context window for long-term agent coherence, cross-document reasoning, and multi-step task planning. Latent MoE enables calling 4 experts for the inference cost of only one, improving intelligence and generalization. Multi-environment RL training across 10+ environments delivers leading accuracy on benchmarks including AIME 2025, TerminalBench, and SWE-Bench Verified.

Fully open with weights, datasets, and recipes under the NVIDIA Open License, Nemotron 3 Super allows easy customization and secure deployment anywhere — from workstation to cloud.

NVIDIA: Nemotron 3 Super (free) Overview

Full NameNVIDIA: Nemotron 3 Super (free)
ProviderNVIDIA
Model IDnvidia/nemotron-3-super-120b-a12b:free
Release DateMar 11, 2026
Context Window262,144 tokens
Pricing /1M tokens$ for input
$ for output
Supported Input Typestext
Supported Parametersinclude_reasoningmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_p

Complete Setup Guide

1

Create OpenRouter Account

  1. Visit openrouter.ai
  2. Click "Sign In" and create an account (free)
  3. Verify your email address
  4. You'll receive $1 in free credits to test models
2

Get Your OpenRouter API Key

  1. Log in to OpenRouter dashboard
  2. Go to "API Keys" section in the menu
  3. Click "Create API Key"
  4. Give it a name (e.g., "TypingMind")
  5. Copy your API key (starts with "sk-or-v1-...")
OpenRouter API Keys
3

Add Credits to OpenRouter (Optional)

  1. Go to "Credits" in OpenRouter dashboard
  2. Click "Add Credits"
  3. Choose amount ($5 minimum, $20 recommended for testing)
  4. Complete payment (credit card or crypto)
  5. Credits never expire!
4

Configure TypingMind with OpenRouter API Key

Method 1: Direct Import (Recommended)

  1. Open TypingMind in your browser
  2. Click the "Settings" icon (gear symbol)
  3. Navigate to "Manage Models" section
  4. Click "Add Custom Model"
  5. Select "Import OpenRouter" from the options
  6. Enter your OpenRouter API key from Step 1
  7. Click "Check API Key" to verify the connection
  8. Choose which models you want to add from the list (you can add multiple at once)
  9. Click "Import Models" to complete the setup
The best frontend AI chat for OpenRouter API Key

Method 2: Manual Custom Model Setup

  1. Open TypingMind in your browser
  2. Click the "Settings" icon (gear symbol)
  3. Navigate to "Models" section
  4. Click "Add Custom Model"
  5. Fill in the model information:
    Name: nvidia/nemotron-3-super-120b-a12b:free via OpenRouter (or your preferred name)
    Endpoint: https://openrouter.ai/api/v1/chat/completions
    Model ID: nvidia/nemotron-3-super-120b-a12b:free
    Context Length: Enter the model's context window (e.g., 262144 for nvidia/nemotron-3-super-120b-a12b:free)
    OpenRouter Endpoint URL input fieldnvidia/nemotron-3-super-120b-a12b:freehttps://openrouter.ai/api/v1/chat/completionsnvidia/nemotron-3-super-120b-a12b:free via OpenRouterhttps://www.typingmind.com/model-logo.webp262144
  6. Add custom headers by clicking "Add Custom Headers" in the Advanced Settings section:
    Authorization: Bearer <OPENROUTER_API_KEY>:
    X-Title: typingmind.com
    HTTP-Referer: https://www.typingmind.com
  7. Enable "Support Plugins (via OpenAI Functions)" if the model supports the "functions" or "tool_calls" parameter, or enable "Support OpenAI Vision" if the model supports vision.
  8. Click "Test" to verify the configuration
  9. If you see "Nice, the endpoint is working!", click "Add Model"
5

Start chatting with nvidia/nemotron-3-super-120b-a12b:free

Now you can start chatting with the nvidia/nemotron-3-super-120b-a12b:free model via OpenRouter on TypingMind:

  • Select your preferred nvidia/nemotron-3-super-120b-a12b:free model from the model dropdown menu
  • Start typing your message in the chat input
  • Enjoy faster responses and better features than the official interface
  • Switch between different AI models as needed
The best frontend AI chat for nvidia/nemotron-3-super-120b-a12b:free via OpenRouter API KeyThe best frontend AI chat for nvidia/nemotron-3-super-120b-a12b:free via OpenRouter API Keynvidia/nemotron-3-super-120b-a12b:freeThe best frontend AI chat for nvidia/nemotron-3-super-120b-a12b:free via OpenRouter API Key

Pro tips for better results:

Why TypingMind + OpenRouter?

  • Best-in-class UI: TypingMind's interface is far superior to standard chat UIs
  • Model flexibility: Switch between NVIDIA: Nemotron 3 Super (free) and 200+ models instantly
  • Cost control: Pay only for what you use through OpenRouter
  • One-time purchase: Buy TypingMind once, use forever with any OpenRouter model
  • Data privacy: Your conversations stored locally, not on external servers

Try TypingMind for free now!

Frequently Asked Questions

Do I need a subscription to use NVIDIA: Nemotron 3 Super (free)?

No! Through OpenRouter, you pay only for what you use with no monthly subscription. Add credits to your OpenRouter account and they never expire. TypingMind is also a one-time purchase, not a subscription.

How much will it cost to use NVIDIA: Nemotron 3 Super (free)?

It costs 0 for input and 0 for output via OpenRouter. A typical conversation might cost $0.01-0.10 depending on length. Start with $5-10 in credits to test.

Can I use other models besides NVIDIA: Nemotron 3 Super (free)?

Yes! With OpenRouter + TypingMind, you get access to 200+ models including GPT-4, Claude, Gemini, Llama, Mistral, and many more. Switch between them instantly in TypingMind.

Is my data private and secure?

Yes! TypingMind stores conversations locally (web version in browser, desktop version on your device). OpenRouter handles API calls securely and doesn't train on your data. Check each provider's data policy for specifics.

Can I use NVIDIA: Nemotron 3 Super (free) for commercial projects?

Yes! Check NVIDIA's terms of service for specific commercial use policies. OpenRouter and TypingMind both support commercial use.

What if NVIDIA: Nemotron 3 Super (free) is unavailable?

OpenRouter allows you to configure fallback models. If NVIDIA: Nemotron 3 Super (free) is down, it can automatically route to your backup choice. You can also manually switch models in TypingMind anytime.

How do I cancel or get a refund?

OpenRouter: No subscriptions to cancel. Unused credits remain in your account forever.