Nano Banana

Google's Gemini 2.5 Flash Image model for fast, high-quality image generation.

Property	Value
Model ID	`google/nano-banana`
Providers	Replicate, Fal
Type	Image generation

Basic Usage

import { compose, generateImage, imageModel } from "@synthome/sdk";

const execution = await compose(
  generateImage({
    model: imageModel("google/nano-banana", "replicate"),
    prompt: "A serene Japanese garden with cherry blossoms",
  }),
).execute();

Provider Options

Available on multiple providers:

// Via Replicate
imageModel("google/nano-banana", "replicate");

// Via Fal
imageModel("google/nano-banana", "fal");

Text-to-Image

Generate images from text descriptions:

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "A cozy coffee shop interior, warm lighting, photorealistic",
  aspectRatio: "16:9",
});

Image-to-Image

Transform existing images:

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "Transform into a watercolor painting style",
  image: "https://example.com/photo.jpg",
});

Options

Option	Type	Default	Description
`prompt`	`string`	required	Text description
`image`	`string \| string[]`	-	Input image(s) for transformation
`aspectRatio`	`string`	`1:1`	Output aspect ratio
`outputFormat`	`"jpg" \| "png" \| "webp"`	`png`	Output format

Aspect Ratios

Ratio	Use Case
`1:1`	Square (Instagram, profile pics)
`16:9`	Landscape (YouTube thumbnails)
`9:16`	Portrait (Stories, mobile)
`4:3`	Classic photo
`3:2`	Photography standard
`21:9`	Ultrawide

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "Mountain landscape at sunset",
  aspectRatio: "21:9",
});

Multiple Reference Images

Use multiple images as references:

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "Combine these styles into a new design",
  image: ["https://example.com/style1.jpg", "https://example.com/style2.jpg"],
});

Examples

Product Photography

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt:
    "Professional product photo of a leather wallet on marble surface, studio lighting",
  aspectRatio: "1:1",
});

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "Motivational quote background, abstract gradient, purple and blue",
  aspectRatio: "9:16",
  outputFormat: "jpg",
});

Style Transfer

generateImage({
  model: imageModel("google/nano-banana", "replicate"),
  prompt: "Convert to anime art style",
  image: "https://example.com/portrait.jpg",
});

Nano Banana

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