Our review
Generates and edits images using NVIDIA FLUX models (dev, schnell, kontext) for text-to-image creation or modifying existing images based on prompts.
Strengths
- Multiple models for different quality/speed trade-offs
- Advanced parameters like aspect ratios and diffusion steps
- Image editing via natural language instructions
- Direct output integration into chat
Limitations
- Requires an NVIDIA API key (embedded but changeable)
- Results can be unpredictable for complex prompts
- No advanced image format support (transparency, etc.)
Use this skill when you need to quickly create original visuals or edit photos with natural language instructions without complex graphic tools.
Avoid this skill for pixel-perfect retouching or if you do not have a stable Internet connection to call the NVIDIA API.
Security analysis
CautionThe skill references an NVIDIA API key embedded in a Python script, which could be leaked if the skill is used to run the script. No destructive commands are present, but the embedded secret is a security concern.
- •API key is embedded in the script, posing a risk of credential exposure.
Examples
Generate a mountain landscape at sunset with snow-capped peaks and a river in the foreground.Edit this photo by changing the background to a sunset over the ocean. /path/to/image.jpgGenerate a wide banner image of a futuristic city skyline at night, 16:9 aspect ratio, using the fast model.name: nvidia-image-gen version: 1.0.0 description: Generate and edit images using NVIDIA FLUX models. Use when user asks to generate images, create pictures, edit photos, or modify existing images with AI. Supports text-to-image generation and image editing with text prompts.
NVIDIA Image Generation
Generate and edit images using NVIDIA's FLUX models.
Models
| Model | Use Case | Speed | Quality |
|-------|----------|-------|---------|
| dev | High-quality text-to-image | Normal | Best |
| schnell | Fast text-to-image | Fast | Good |
| kontext | Image editing | Normal | Best |
Quick Start
# Generate an image
python scripts/generate.py "A cute cat in space"
# Edit an existing image
python scripts/generate.py "Add sunglasses" -i photo.jpg -o edited.png
Parameters
Text-to-Image (dev/schnell)
| Parameter | Short | Default | Description |
|-----------|-------|---------|-------------|
| prompt | | (required) | Text description |
| -o, --output | | output.png | Output file path |
| --width | | 1024 | Output width in pixels |
| --height | | 1024 | Output height in pixels |
| --aspect-ratio | -ar | 1:1 | Aspect ratio preset |
| --steps | -s | 30 | Diffusion steps |
| --seed | | 0 | Random seed (0=random) |
| --model | -m | auto | Model selection |
Image Editing (kontext)
| Parameter | Short | Default | Description |
|-----------|-------|---------|-------------|
| prompt | | (required) | Edit instruction |
| -i, --input | | (required) | Input image path |
| -o, --output | | output.png | Output file path |
| --steps | -s | 30 | Diffusion steps |
| --cfg | | 3.5 | Guidance scale |
| --seed | | 0 | Random seed |
Supported Aspect Ratios
| Ratio | Resolution | |-------|------------| | 1:1 | 1024×1024 | | 16:9 | 1344×768 | | 9:16 | 768×1344 | | 4:3 | 1216×832 | | 3:4 | 832×1216 |
Examples
Basic Generation
python scripts/generate.py "A mountain landscape at sunset"
Wide Format (16:9)
python scripts/generate.py "A panoramic beach view" -ar 16:9
Portrait Mode (9:16)
python scripts/generate.py "A professional headshot" -ar 9:16
Custom Size
python scripts/generate.py "A banner image" --width 1344 --height 768
Fast Generation
python scripts/generate.py "Quick sketch of a robot" -m schnell
Edit an Image
python scripts/generate.py "Make the background a sunset" -i input.jpg -o output.png
Reproducible Results
python scripts/generate.py "A robot" --seed 12345
Output
The script outputs MEDIA:/path/to/image.png which can be sent directly to chat.
API Key
The API key is embedded in the script. To use a different key, set the NVIDIA_API_KEY environment variable.
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