Nano Banana Pro (Gemini 3 Pro Image)
Use the bundled script to generate or edit images.
Generate
uv run {baseDir}/scripts/generate_image.py --prompt "your image description" --filename "output.png" --resolution 1K
Edit (single image)
uv run {baseDir}/scripts/generate_image.py --prompt "edit instructions" --filename "output.png" -i "/path/in.png" --resolution 2K
Multi-image composition (up to 14 images)
uv run {baseDir}/scripts/generate_image.py --prompt "combine these into one scene" --filename "output.png" -i img1.png -i img2.png -i img3.png
API key
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GEMINI_API_KEY env var
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Or set skills."nano-banana-pro".apiKey / skills."nano-banana-pro".env.GEMINI_API_KEY in ~/.openclaw/openclaw.json
Notes
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Resolutions: 1K (default), 2K , 4K .
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Use timestamps in filenames: yyyy-mm-dd-hh-mm-ss-name.png .
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The script prints a MEDIA: line for OpenClaw to auto-attach on supported chat providers.
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Do not read the image back; report the saved path only.