Nano Banana: an AI tool for editing images using natural language

Nano Banana is an AI image editing tool based on Google Gemini 2.5 Flash Image technology. Users can modify existing images by entering simple text commands. The core strength of this tool is its ability to perform localized editing with precision while maintaining consistency between the character's features and the scene environment in the picture. For example, it can change a character's clothing or hair color without affecting the character's facial features or background. Nano Banana also supports fusing multiple images, combining elements or styles from different photos into a new image. Currently, users can access this feature through Google Gemini or third-party apps that integrate the model, such as Imogen. The tool is straightforward to use and requires no specialized knowledge, making complex photo editing tasks quickly accessible to the average user.

Function List

• Text instruction editing:: Users directly modify images by entering natural language text, such as "put a blue jacket on this person".
• Maintaining character consistency: The ability to maintain the same character's facial features and style in different scenes, outfits, or poses, ensuring that the characters in a series of images appear to be the same person.
• Local Precision Modification: Modifications can be made to only specific areas of the image without affecting the surrounding background, lighting and texture details.
• Scene Sensing and Light Matching: When editing or replacing picture elements, it is possible to automatically adjust the lighting and layout so that the newly added elements appear to blend in with the original scene.
• multimap fusion: Blend objects, colors, and textures from up to three different images to create a whole new image with a unified style.
• style migration: Applying the artistic style of one image (e.g., oil painting, anime) to another while preserving the content and subject features of the original.
• Background Replacement: Quickly change the background of a picture and automatically adjust the lighting and perspective of the subject to naturally match the new background.
• Quick Generation: Optimized models result in extremely fast processing speeds, and some complex scene edits can be done in less than a second.

Using Help

The Nano Banana model is available to users through two main channels: Google Gemini and the third-party application Imogen. Both are very simple and suitable for all users without the need for a complex technical background.

Method 1: Use via Google Gemini

Google Gemini is one of the official channels to experience Nano Banana's features and the process is straightforward. However, it is important to note that images edited and exported in this way will be watermarked.

Operational Steps:

1. Visit Gemini: Open the Google Gemini website in your browser and sign in with your Google account.
2. Upload a picture: After logging in, you will see an input box. Click the Image Upload button next to the input box and select an image from your computer or phone that you want to edit.
3. Input editing commands: After the image has been successfully uploaded, enter your modification request in the same input box. Your instructions need to be clear and specific.
   • Simple Modification Example:
     • Change of clothing color: - - - - - - 把她的裙子换成红色
     • Add accessories. 给她戴上一副墨镜
     • Change background. 把背景换成夜晚的沙滩
   • Advanced revisions (multiple rounds of editing):: Nano Banana supports contextualized editing. You can continue to request new changes to an image after it has been modified. For example, you can continue typing after changing the skirt to red:再给她加一条项链The AI remembers what you did in the previous step and continues to make changes on a new basis.
4. Generate & View: After entering the command, press Enter and the AI model will start processing your request. After a few seconds, the modified image will be displayed.
5. Download images: If you are satisfied with the results, you can simply download the image and save it. Please note that there will be a Gemini watermark on the image.

Method 2: Use via Imogen app (no watermark)

Imogen is a third-party photo editing app running on iOS and macOS devices that integrates the core features of Nano Banana. It's a great choice for users who are looking for higher quality images and a watermark-free experience.

Installation and use process:

1. Download & Installation:
   • Open the App Store on your iPhone, iPad or Mac computer.
   • Search for "Imogen".
   • Find the app and click to download and install it.Imogen is a freemium app, basic features are free and some premium features may require payment.
2. Import Images:
   • Open the Imogen app.
   • The app interface usually has a "+" or "Import" button, tap it to select a photo from your album.
3. Using the Nano Banana Editing Function:
   • Once the image has been imported, locate the AI or text input based editing function in the editing toolbar (usually prominently labeled).
   • Clicking on this function will bring up a text input box.
   • In the input box, describe the changes you want to make in simple terms, with the exact same logic as in Gemini.
     • For example, type 移除图片左边的那棵树 maybe 让天空看起来更蓝The
4. One-click application and adjustment:
   • Once you've entered your instructions, click "Apply" or a similar confirmation button, and Imogen will invoke the Nano Banana model for processing and quickly display the results.
   • Imogen's strength is its user-friendly interface, which usually makes operation more intuitive.
5. Save & Export:
   • After you finish editing, click "Save" or "Export" button to save the watermark-free HD image to your device album.

application scenario

1. Social Media Content Creation
   Users can quickly modify travel photos or daily selfies, such as changing backgrounds, adjusting outfits, or adding interesting elements to photos to make postings more creative and engaging.
2. Product and Fashion Photography
   Photographers or e-commerce sellers can use Nano Banana to efficiently modify product images. For example, quickly change the color of an item, eliminate clutter in the background, or try different clothing combinations on a model's photo without having to re-shoot.
3. Conceptual art and design
   Designers and artists can use the multi-image fusion and style migration features to quickly explore different visual ideas. They can apply the style of a sketch to a realistic photo, or blend multiple unrelated image elements into a new work of art.
4. Personal Entertainment & Photo Restoration
   Regular users can easily blend their own or friends' photos with celebrities, movie scenes, etc. to create interesting composite images. It can also be used to restore old photos, such as correcting colors and removing scratches.

QA

1. Is Nano Banana free?
   Using Nano Banana through Google Gemini is free, but the resulting images will be watermarked. For use in third-party apps such as Imogen, the basic features are free, but there may be a fee for watermark-free exporting or advanced features.
2. How is this tool different from Midjourney or Stable Diffusion?
   The main difference is that the Nano Banana's core features arecompilerexisting images rather than generating images from scratch. It is better at making precise, controlled changes to user-supplied photos while maintaining their realism and consistency.
3. Why is it called Nano Banana?
   The name comes from the AI community. Initially, the model appeared anonymously on LMArena, an AI modeling competition platform, and its generated content often featured banana elements, and Google engineers used banana emojis to hint at it on social media, so the community nicknamed it "Nano Banana" and the name spread. Its official name is "Gemini 2.5 Flash Image".
4. Do I need to learn a specific command format when editing images?
   Not required. You can simply use everyday natural language to describe your modification needs. The simpler and more direct the instructions, the more accurate the AI's understanding usually is.