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GEMINI 2.5 FLASH IMAGE

Nano Banana AI Image Generator

Nano Banana is Google's Gemini 2.5 Flash Image — a fast, multimodal image generation and editing model that generates standard images in 1–2 seconds, blends up to 14 reference photos, and edits via natural language. No install required.

Model
Reference Images0 / 10

Drag or click to upload JPG, PNG, or WEBP images

Prompt
0 / 5000
Aspect Ratio
Output Number
GPT Image 2 demo
GPT Image 2
Nano Banana demo
Nano Banana
Nano Banana Pro demo
Nano Banana Pro
Nano Banana 2 demo
Nano Banana 2

What is Nano Banana?

Nano Banana is the community nickname for Gemini 2.5 Flash Image, Google's fast multimodal image generation model that became generally available in October 2025. Unlike conventional image generators that treat prompts as a list of weighted tokens, Nano Banana was built from the ground up on a Multimodal Diffusion Transformer that processes text and images together — giving it a genuine understanding of context, scene structure, and subject identity.

The model's main strengths are speed and editing flexibility: it generates in 1–2 seconds, accepts up to 14 reference images, and applies targeted edits — background swaps, object removal, style transfers — from plain language instructions without masks. For higher resolution output or stronger text rendering, consider Nano Banana 2 or Nano Banana Pro. For photorealistic renders and precise in-image text, GPT Image 2 is the stronger pick — switch models with the selector above to compare on the same prompt.

Nano Banana Key Features

Gemini 2.5 Flash Image is built for speed and editing control. Here is what each capability means for your workflow.

1–2 Second Generation

Nano Banana generates standard images in 1–2 seconds and completes most tasks within 10 seconds — significantly faster than DALL-E 3 (15–30 s) or Midjourney (30–60 s). This speed makes it practical for rapid iteration and high-volume workflows.

Up to 14 Reference Images

Upload up to 14 source images in a single request. The model fuses subjects, styles, and scenes into one coherent composition — up to 6 inputs at high fidelity. Useful for product mockups, collages, and style transfers.

Character Consistency

Pass a reference image of your subject and Nano Banana preserves facial structure, body proportions, and distinctive traits across separate prompts and environments — keeping characters recognisable throughout a series.

Natural-Language Editing

Describe the change you want — background replacement, object removal, colorization, pose adjustment — and the model applies the targeted edit without manual masks or selections.

10 Aspect Ratios

Choose from 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 5:4, 4:5, and 21:9 so outputs fit social posts, banners, thumbnails, or print formats without cropping.

SynthID Watermark

Every generated or edited image carries Google's invisible SynthID digital watermark. The signature persists through crops and resizes, keeping AI-generated content identifiable and transparent.

How to Use Nano Banana in 4 Steps

From prompt to download in seconds — no software to install and no API key to configure.

01

Select Nano Banana

The model selector on this page already defaults to Nano Banana — no setup or API key needed.

02

Upload Reference Images (Optional)

Add up to 14 images to blend, edit, or reference. Skip this step to generate a brand-new image from text alone.

03

Write Your Prompt

Describe the result or the edit in plain language, then pick an aspect ratio and how many images to produce.

04

Generate and Download

Click Generate. Results appear in the panel on the right — download, edit with a follow-up prompt, or send to Seedance 2.0 to animate.

When to Use Nano Banana

  • Rapid iteration and drafting — 1–2 second generation means you can test ten prompt variations in the time other models produce one image.
  • Photo editing without Photoshop — swap backgrounds, remove objects, or change outfits by describing the edit in plain language, no masks required.
  • Consistent characters and brand assets — keep a person or product looking identical across a series for comics, storyboards, or campaign imagery.
  • Product and marketing mockups — blend a product shot into new scenes and lighting conditions for e-commerce listings and social posts.
  • Animate the result — generate a key frame here, then bring it to life with Seedance 2.0.

Nano Banana FAQ

Common questions about Gemini 2.5 Flash Image and how it works on ImageGen 2.

What is Nano Banana?

Nano Banana is the nickname for Google's Gemini 2.5 Flash Image, a multimodal AI model for generating and editing images. It became generally available in October 2025 via the Gemini API and Google AI Studio. The model is built on a Multimodal Diffusion Transformer architecture that processes text and images together from the ground up, rather than treating image generation as an add-on to a language model.

How fast does Nano Banana generate images?

Nano Banana generates standard images in 1–2 seconds and completes most tasks within 10 seconds. This is considerably faster than models like DALL-E 3 (15–30 seconds) and Midjourney (30–60 seconds), making it well suited for rapid iteration and production workflows.

How many reference images can I upload?

You can upload up to 14 reference images in a single request, with up to 6 images processed at high fidelity. The model fuses subjects, styles, or scenes from all inputs into one coherent output while following your text prompt.

How is Nano Banana different from Nano Banana 2 and Nano Banana Pro?

Nano Banana (Gemini 2.5 Flash Image) is the original model in the family, optimised for speed and low cost per image. Nano Banana 2 (Gemini 3.1 Flash Image) adds better text rendering, higher resolution output up to 4K, and more aspect ratios including panoramic formats. Nano Banana Pro (Gemini 3 Pro Image) offers the highest compositional quality, 4K output, and the best text rendering in the family. Choose Nano Banana when generation speed is your priority.

Can Nano Banana edit an existing photo?

Yes. Upload one or more reference images, describe the change you want, and Nano Banana applies targeted edits — swapping backgrounds, removing objects, changing colours, or blending subjects — without manual masking.

Are Nano Banana images watermarked?

Yes. Every image generated or edited with Nano Banana carries Google's invisible SynthID watermark. According to Google, the signature persists through cropping and resizing, making AI-generated content identifiable even after post-processing.

Last updated 2026-06-17. Nano Banana, Gemini, and SynthID are trademarks of Google LLC. ImageGen 2 is an independent platform and is not affiliated with or endorsed by Google.