Nano Banana API

Text to ImageImage to Image

Fast Google Gemini 2.5 Flash image generation with 10 aspect ratios and reference image support.

·Features·FAQ

Documentation

Prompt *

Text description for the image generation

Aspect Ratio *

Reference Images

Upload up to 20 reference images (max 10MB each)

0/20

Click or drag & dropPNG, JPG, WEBP, GIF · Max 10MB

Output

Your generated image will appear here

Features

What Nano Banana API offers

Google Gemini 2.5 Flash image generation

Text-to-image from a prompt

Ten aspect ratios from 1:1 through 21:9

Up to 20 optional reference images (10 MB max each) passed as image URLs

REST JSON API with task-based generation and status polling

One playground variant with no separate resolution SKU in the UI

Use cases

Built for

Primary

UI mocks and storyboards when you need many aspect-ratio crops from one prompt batch

In-app thumbnails: square and vertical crops without maintaining separate model configs

Rough comping over user-supplied reference shots for layout, not final print

FAQ

About Nano Banana API

It is the standard Google Gemini 2.5 Flash image route on Unifically: prompt in, image out, with optional reference images and aspect ratio selection.

The price list shows one line, Nano Banana, at $0.03 per image.

Yes. You can attach up to 20 reference images within the documented size limit to steer composition or style.

Use Nano Banana for the lowest per-image list price when you do not need separate 1K, 2K, or 4K price tiers. Use Nano Banana 2 when you want resolution-tiered pricing (Nano Banana 2 1K, Nano Banana 2 2K, Nano Banana 2 4K). Use Nano Banana Pro when you need Gemini 3 Preview and the Nano Banana Pro 1K/2K price line.