Nano Banana Pro Image Generator

Generate and edit images using Google's Nano Banana Pro model via the Replicate API.

Usage

Run the generation script:

uv run --with replicate python {baseDir}/generate.py --prompt "<user prompt>" [--aspect-ratio 1:1] [--output image.png]

Options

• --prompt: The image description (required)
• --aspect-ratio: Ratio like 1:1, 4:3, 16:9 (default: 1:1)
• --output: Output file path (default: generated_image.png)

Rules

• Only use the google/nano-banana-pro model. Never fall back to other models like google/nano-banana or any alternative. If the model is unavailable or rate-limited, report the error to the user and stop.
• After generating an image, send the image file directly in the chat. Do not just save it to the workspace silently.

Tips

• For text in images, be specific about fonts, size, and placement
• The model supports resolutions up to 2K
• Safety filtering is on by default