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Gemini 3.1 Flash Image Preview (Nano Banana 2)

Gemini 3.1 Flash Image Preview (Nano Banana 2) Preview (Nano Banana 2) improves visual output quality at flash-tier speed, adding Google Image Search grounding, configurable thinking levels, and new resolution and aspect ratio options including 512p and ultra-wide formats.

Image GenImplicit CachingReasoningVision (Image)Web Search
index.ts
import { generateText } from 'ai'


const result = await generateText({
  model: 'google/gemini-3.1-flash-image-preview',
  prompt: 'Render a picture of a red balloon.',
});
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Playground

Try out Gemini 3.1 Flash Image Preview (Nano Banana 2) by Google. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.

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Prompt
Describe what you want the model to generate.
Need inspiration?
Reference images(optional)
Images to generate
Aspect ratio
Resolution
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Your generated image will appear here