# Nano Banana Openrouter

> Generate or edit images via OpenRouter using Google's Gemini 3 Pro Image model. Use when the user wants to generate images using OpenRouter API instead of direct Google API.

- Skill: `liuhetian/nano-banana-openrouter` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add liuhetian/nano-banana-openrouter`
- Raw SKILL.md: https://api.skillmd.com/api/skills/liuhetian/nano-banana-openrouter/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: liuhetian (https://skillmd.com/u/liuhetian)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/liuhetian/nano-banana-openrouter

---


# Nano Banana OpenRouter

Generate or edit images via OpenRouter using Gemini 3 Pro Image model.

## Usage

### Generate
```bash
uv run {baseDir}/scripts/generate_image.py --prompt "your image description" --filename "output.png"
```

### Edit
```bash
uv run {baseDir}/scripts/generate_image.py --prompt "edit instructions" --filename "output.png" --input-image "/path/in.png"
```

## API Key

- `OPENROUTER_API_KEY` env var
- Or set `skills."nano-banana-openrouter".apiKey` / `skills."nano-banana-openrouter".env.OPENROUTER_API_KEY` in `~/.clawdbot/clawdbot.json`

## Notes
- Uses `google/gemini-3-pro-image-preview` model via OpenRouter
- Returns image as base64 data URL
- The script prints a `MEDIA:` line for Clawdbot to auto-attach on supported chat providers
- Do not read the image back; report the saved path only