Nano Banana Pro API

Text to Image

Gemini 3 Preview with 1K/2K/4K resolution control. Advanced image generation capabilities.

·Features·FAQ

Documentation

Prompt *

Text description for the image generation

Aspect Ratio *

Resolution

Output resolution quality

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 Pro API offers

Google Gemini 3 Preview image generation

Selectable output resolution: 1K, 2K, or 4K

Ten aspect ratios from 1:1 through 21:9

Up to 20 optional reference images (10 MB max each)

REST JSON API with task-based generation and status polling

Use cases

Built for

Primary

Brand kits: locked aspect ratios with Pro resolution control for master assets

Pitch decks: higher-resolution stills when the venue projects on large displays

Design handoff: reference-driven comps before a separate retouching pass

FAQ

About Nano Banana Pro API

It is the Gemini 3 Preview image route with the same reference-image and aspect-ratio surface as other Nano Banana models, plus a resolution parameter for 1K, 2K, or 4K output.

The rate card lists Nano Banana Pro 1K/2K at $0.06 per image.

Nano Banana uses Gemini 2.5 Flash and one Nano Banana price. Nano Banana 2 keeps Gemini image generation with per-tier Nano Banana 2 1K, Nano Banana 2 2K, and Nano Banana 2 4K pricing. Pro swaps in Gemini 3 Preview and the Nano Banana Pro 1K/2K listing.

Up to 20 images within the documented per-file size cap, supplied as URLs.