openrouter-text2image

Text → image via OpenRouter. Default model: openai/gpt-5.4-image-2.

Other supported models (override with --model):

• google/gemini-3.1-flash-image-preview (Nano Banana 2)
• any other OpenRouter image-modality model

Usage

Resolve TOOL_DIR = the directory containing this SKILL.md. Commands below use TOOL_DIR as a symbolic placeholder; replace it with the resolved, quoted path before running Bash.

export OPENROUTER_API_KEY=sk-or-v1-...

python3 TOOL_DIR/scripts/generate_image.py \
  --prompt "Editorial illustration: a neon-lit skateboard at dusk, dramatic shadows" \
  --download PROJECT_DIR/assets/teaser.png

Flags

Flag	Default	Description
--prompt	required	Text prompt
--download	required	Output file path (PNG)
--model	openai/gpt-5.4-image-2	Override with any OpenRouter image-modality model

Notes

• Request uses POST /api/v1/chat/completions with modalities: ["image","text"].
• Images are returned as base64 data URLs in the assistant message; the script decodes and writes to disk.
• For edits/inpainting, include messages with both text and image-URL content parts — the script currently supports text-only prompts.