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Nano Banana

Generate and edit images using Gemini 2.5 Flash image model with optional source images

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Inputs

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Execution Steps

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Overview

Nano Banana generates new images from a prompt or edits source images you provide through public image URLs. Use it for campaign visuals, product-style variations, ad concepts, social creative, or source-aware edits when you want a plain-language Gemini 2.5 Flash image workflow with aspect-ratio and output-count controls.

Use cases

  • Draft visual directions for a landing page, ad, or social post from one prompt.
  • Edit reference images by describing the change, style, composition, or visual treatment you want.
  • Create several image options from the same brief for comparison.
  • Use source images to anchor product, brand, or composition details.

Input tips

  • Use a prompt of 3-5,000 characters with the subject, setting, style, composition, and intended use.
  • Add image_urls only when you want the AI Tool to edit or reference existing images.
  • Provide 1-14 public source image URLs; an empty image list is treated as prompt-only generation.
  • Set num_images from 1-4 and choose an aspect ratio such as 1:1, 16:9, 4:3, 3:2, 5:4, 4:5, 3:4, 2:3, or 9:16.
  • Use Nano Banana 2 or Nano Banana Pro when resolution controls are required.

Expected output

The AI Tool returns one or more generated or edited image URLs with optional content type, file name, file size, width, and height, plus a short description of the result and cost metadata. The shared output view renders a single image or gallery and shows description, image count, and the Nano Banana model label.

Caveats

  • Source image URLs must be public and reachable; failed downloads can stop an edit run.
  • This AI Tool uses a fixed 1K image size and does not expose resolution or output-format controls.
  • If no usable image data is returned, the run fails instead of returning an empty gallery.
  • Prompt wording strongly affects image quality, style, and brand fit.
  • Generated text, logos, product details, faces, and image edges should be reviewed before use.

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