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Generate or edit images using AI models (FLUX, Gemini).
Passed 21 of 23 test cases with the skill, and 12 of 23 without it.
and 11 more in the full report
10 fixed13 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.
Write a command to generate an image of 'A serene Zen garden' using short option flags to select the FLUX 2 Pro model and output to zen.png.
| Checked | Without skill | With skill |
|---|---|---|
| Uses -m black-forest-labs/flux.2-pro | Missed | Passed |
| Uses -o zen.png | Passed | Passed |
The instructions your model reads when the skill loads.
Generate and edit high-quality images using OpenRouter's image generation models including FLUX.2 Pro and Nano Banana Pro (Gemini 3 Pro).
Use the scripts/generate_image.py script to generate or edit images:
# Generate a new image
python scripts/generate_image.py "A beautiful sunset over mountains"
# Edit an existing image
python scripts/generate_image.py "Make the sky purple" --input photo.jpg
This generates/edits an image and saves it as generated_image.png in the current directory.
CRITICAL: The script requires an OpenRouter API key. Before running, check if the user has configured their API key:
.env file in the project directory or parent directoriesOPENROUTER_API_KEY=<key> in the .env file.env file with OPENROUTER_API_KEY=your-api-key-hereexport OPENROUTER_API_KEY=your-api-key-hereThe script will automatically detect the .env file and provide clear error messages if the API key is missing.
Default model: google/gemini-3-pro-image-preview (high quality, recommended)
Available models for generation and editing:
google/gemini-3-pro-image-preview - High quality, supports generation + editingblack-forest-labs/flux.2-pro - Fast, high quality, supports generation + editingGeneration only:
test cases passed, vs 12 / 23 without
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