What Is Nano Banana? How to Use This AI Image Editor [Latest 2026]

Blurring a photo's background, erasing unwanted people, turning a black-and-white photo into color… Wouldn't it be convenient if you could do all of that just by typing a few words?

"Nano Banana," released by Google in August 2025, is a free AI image editing tool that makes that dream a reality. Its official name is "Gemini 2.5 Flash Image," and it uses the technology behind Google's latest AI model, Gemini.

What you'll learn in this article:

• The basics and how Nano Banana works
• What kinds of image editing it can do
• How to actually use it and get started
• Pros and cons
• Who it's best suited for

What Is Nano Banana?

Nano Banana is an AI image editing tool developed by Google. Its official name is "Gemini 2.5 Flash Image," and "nano-banana" was its codename (internal nickname) during development.

The biggest feature of this tool is that you can edit images simply by typing instructions in plain language. For example, type "blur the background" or "remove this person," and the AI will automatically process the image for you.

Anyone can use it through Google AI Studio, a free service — no specialized image editing software required. Powered by Gemini, a high-performance AI (one that understands text and can create images much like a human would), even beginners can achieve professional-level edits.

What You Can Do with Nano Banana

Nano Banana supports the following types of image editing:

Merge multiple photos into one
For example, you can combine a person and a background photographed separately into a single natural-looking photo.

Fix fine details
Remove a stain on clothing, delete an unwanted person who wandered into the shot, and make precise, pinpoint corrections.

Style conversion
Colorize a black-and-white photo, or transfer the mood (style) of one photo onto another.

Character consistency
Keep the same person or character looking identical across multiple images — perfect for creating story comics or sequential illustrations.

10 supported sizes
Create images in aspect ratios suited to your needs, such as portrait for smartphones or widescreen for YouTube.

How to Use Nano Banana

Nano Banana is easy to use through Google AI Studio. Follow these steps to get started:

Step 1: Go to Google AI Studio
Open https://aistudio.google.com in your browser. Log in with your Google account.

Step 2: Select the model
From the list of models displayed on screen, choose "Gemini 2.5 Flash Image" or "nano-banana."

Step 3: Upload your image
Upload the photo you want to edit by dragging and dropping it, or by selecting a file.

Step 4: Enter your instructions
Type what you want done — for example, "blur the background" or "remove this person."

Step 5: Generate and review
The AI will display the edited result in a matter of seconds. If you're not satisfied, simply change your instructions and regenerate.

Using the API (a mechanism for accessing the tool programmatically), you can also integrate it into your own service.

Pros and Cons of Nano Banana

Pros

• Free to use: Google AI Studio has a free tier, so you can try it out without any commitment.
• Easy to operate: No specialized knowledge needed — just type your instructions.
• Fast editing: Results appear in seconds, so you can experiment as many times as you like.
• Watermark feature: Images created by the AI include an invisible watermark called SynthID, indicating that they are AI-generated. This helps combat misinformation.

Cons

• Not perfect: Complex instructions or overly fine-grained edits may not always turn out as expected.
• API costs: If you use it heavily, going through the API is said to cost roughly ¥4 per image.
• Japanese language support: Instructions in English may sometimes yield better accuracy.

Who Should Use Nano Banana?

Nano Banana is especially recommended for the following people:

People who post on social media or blogs
Perfect for anyone who wants to quickly touch up photos for Instagram or Twitter.

Beginners at image editing
Great for those who want to start easily with AI before tackling difficult software like Photoshop.

Creators and designers
Ideal for illustrators and comic artists who want to depict characters with a consistent appearance.

Developers
Engineers who want to integrate image editing functionality into their own apps or services.

On the other hand, if you need precision editing at a professional level, we recommend using Nano Banana alongside traditional image editing software.

Summary

Nano Banana is a free AI image editing tool provided by Google. Let's recap the key points:

• An image editing tool powered by Google's latest AI, "Gemini 2.5 Flash Image"
• Lets you blur backgrounds, remove people, colorize images, and more — just by typing instructions
• Available for free through Google AI Studio
• Easy even for beginners, with results in seconds
• Recommended for social media content creators, creatives, and developers
• Be aware that API fees apply for heavy usage

As of 2026, the field of AI image editing is evolving at a rapid pace. With Nano Banana, anyone can easily experience professional-level editing. Start by visiting Google AI Studio and trying it out for free.

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This article is a cross-post from AI Friends.