Nano Banana – An AI image editing model with exceptionally high character consistency

What is Nano Banana？

Nano Banana is an AI image editing model that currently only appears randomly on the LMArena platform. The model features exceptionally high character consistency, accurately preserving facial features and expressions. It also excels in background replacement and style transfer. Users can simply upload an image and enter a prompt to generate high-quality results. Nano Banana is regarded as the new champion in the field of AI image editing.

Key Features of Nano Banana

Character Consistency Generation: Accurately restores facial features, expressions, and poses of people.
Background Replacement & Blending: Supports replacing the background of an image with a user-defined one, blending lighting and atmosphere naturally to make the result more realistic.
Style Transfer: Converts images into different artistic styles—such as Van Gogh, cyberpunk, or ink painting—while maintaining the consistency of the subject.
Action Transfer: Based on user prompts, transfers gestures or actions to generate new images that fit the description.
Fine Detail Editing: Precisely edits small details in the image, such as replacing text or adjusting clothing, while keeping results natural.

How to Use Nano Banana

Visit LMArena: Go to the official LMArena website.
Select Mode: At the top of the site, choose the Battle mode.
Upload an Image: Click the + icon on the left side of the dialog box to upload a reference image.
Enter a Prompt: In the input box, type a detailed prompt describing the desired output. The more detailed the prompt, the better the result.
Submit: Click Submit to send your request. The system randomly selects two models to generate two images.
Choose the Best Result: After generation, two images will be shown. Pick the one you prefer. Once chosen, the system reveals which model created it. If you’re lucky, Nano Banana’s output will be selected—often with stunning results.

Applications of Nano Banana

Video Production: Quickly generate video covers with different actions and backgrounds to increase appeal and save design time.
Advertising & Marketing: Create high-quality ad images tailored to diverse marketing scenarios, boosting campaign performance.
Creative Design: Transform photos into various artistic styles, providing designers with rich creative inspiration and accelerating workflows.
Social Media: Generate personalized and creative images for bloggers and content creators, enhancing engagement and interactivity.
Game Development: Efficiently produce character actions and scene visuals, enriching game aesthetics and shortening development cycles.