NIM Explorer

Machine-readable catalog of 107 Nvidia NIM LLM models with capability detection and an HTML browser.

Getting Started | Model Catalog | API Reference | Scripts

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Features

• Model Catalog -- JSON catalog of all 107 available NIM models with metadata (family, params, capabilities, quirks)
• HTML Browser -- Static page to filter, search, and explore models by capability
• Capability Probing -- Automated detection of tool calling, JSON mode, thinking support per model
• API Reference -- Complete Nvidia NIM endpoint documentation based on live testing

Getting Started

Prerequisites

• Python 3.12+
• Nvidia NIM API key (get one free)

Installation

git clone https://github.com/adityonugrohoid/nim-explorer.git
cd nim-explorer

python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt

Configuration

cp .env.example .env

Edit .env with your Nvidia API key:

NVIDIA_API_KEY=nvapi-...

Model Catalog

The catalog (models/catalog.json) contains metadata for every callable model on Nvidia NIM's free tier.

By Organization

Organization	Models	Highlights
meta	11	Llama 3.x/4, vision, guard
nvidia	16	Nemotron (thinking + tools), safety, translation
mistralai	13	Mistral/Mixtral, Codestral, Mathstral
microsoft	11	Phi 3/3.5/4, reasoning, vision
google	10	Gemma 2/3/3n, ShieldGemma
qwen	9	Qwen 2/2.5/3/3.5, QwQ, coding
deepseek-ai	5	R1-distill (thinking), V3.x
20+ others	32	Regional, specialized, emerging

Refreshing the Catalog

# Probe all models and rebuild catalog.json
python scripts/build_catalog.py

API Reference

See docs/api-reference.md for complete Nvidia NIM endpoint documentation including:

• All request parameters with types, defaults, and ranges
• Response shape variations by model backend
• Tool calling format and supported models
• Thinking/reasoning patterns (3 different approaches)
• Streaming SSE format
• Error response inconsistencies

Scripts

# Build the full model catalog
python scripts/build_catalog.py

# Probe a single model for detailed info
python scripts/probe_model.py meta/llama-3.3-70b-instruct

Project Structure

nim-explorer/
├── models/
│   └── catalog.json            # Machine-readable model catalog
├── docs/
│   ├── index.html              # HTML model browser
│   └── api-reference.md        # Complete NIM API documentation
├── scripts/
│   ├── build_catalog.py        # Probe all models, build catalog
│   └── probe_model.py          # Probe single model
├── results/
│   └── raw/                    # Raw API responses (gitignored)
├── CLAUDE.md
├── README.md
├── ROADMAP.md
├── requirements.txt
└── .env.example

Roadmap

• v0.1: Model catalog + HTML browser + API reference
• v0.2: Tool calling / JSON mode / thinking probes + benchmarks
• v0.3: Arena integration (multi-model comparison app)

License

This project is licensed under the MIT License.

Author

Adityo Nugroho (@adityonugrohoid)