generate-image

# Generate Image Generate and edit images through OpenRouter's Image API, which reaches Gemini, FLUX, Seedream, Recraft, GPT-Image, and roughly thirty other models behind one request shape. ## When to use **Use this skill for:** photos and photorealistic images, illustrations and artwork, concept art, presentation and poster visuals, logos and vector marks, image editing, and compositing from reference images. **Use `scientific-schematics` instead for:** flowcharts, circuit diagrams, biological pathways, system architecture diagrams, CONSORT diagrams, and other technical schematics. ## API key Generation requires an OpenRouter key. The script resolves it in this order: 1. `--api-key` 2. the `OPENROUTER_API_KEY` environment variable 3. `OPENROUTER_API_KEY=` in a `.env` file, searching the working directory upward If none is present the script exits with setup instructions. Keys: https://openrouter.ai/keys `--list-models` needs no key. ## Quick start ```bash # Generate python scripts/generate_image.py "A beautiful sunset over mountains" # Edit an existing image python scripts/generate_image.py "Make the sky purple" -i photo.jpg -o edited.png ``` Output defaults to `generated_image.<ext>`, where the extension follows the media type the model returned. The per-request cost is printed from `usage.cost`. ## Choosing a model Default: `google/gemini-3.1-flash-image`. | Need | Model | | --- | --- | | General quality, prompt adherence | `google/gemini-3.1-flash-image` |...