What is Nano Banana?
Nano Banana is Google's latest AI image editing model, officially known as Gemini 2.5 Flash Image. Often stylized as "Nano Banana," this model represents a state-of-the-art advancement in AI-driven image generation and editing. In essence, Nano Banana allows you to transform and create images using natural language instructions. It can blend multiple images together, apply complex edits to photos, and maintain consistent details like a person's face or a pet's appearance across edits.
Developed by the Google DeepMind team, Nano Banana was introduced in mid-2025 as a major upgrade within Google's Gemini AI platform. Despite its whimsical name, the Nano Banana AI model is extremely powerful. Early tests showed it outperformed other image models by a wide margin, quickly becoming the top-rated image editing model in the world. This means it can often produce more accurate and higher-quality edits than previous generators. For example, Nano Banana excels at making local changes to an image (like changing the background or adding an object) while keeping the rest of the picture looking natural. It also leverages Google's vast world knowledge, enabling it to generate creative content that stays contextually believable.
It's like having a very smart, lightning-fast Photoshop artist who understands your instructions in plain English. The model earned its quirky title internally (with Google engineers joking that people were "going bananas" over its results), but underneath the fun name is serious technology. Nano Banana uses advanced image generation and editing techniques to handle tasks that range from simple touch-ups to elaborate transformations. Whether you want to remove an unwanted object from a photo or conjure a fantastical scene, Nano Banana can do it in seconds. In short, Nano Banana is an AI image editor that brings Google's cutting-edge generative AI capabilities directly to creators and everyday users.
How to use Nano Banana?
Using Nano Banana is surprisingly straightforward, even if you're new to AI image editing. The model is designed to be user-friendly, so you don't need any design skills or coding knowledge. All you need is an image to start with and an idea of what you want to change or create. You can interact with the Nano Banana AI through simple steps: just provide an image and describe the edits you want in natural language, and the model will handle the rest. Here's how you can use Nano Banana in practice, especially via the convenient Nano Banana image editor on Krea.ai:
Upload your image
Start with any photo. It could be a portrait of a person, a picture of your pet, a landscape, or a product shot. The Nano Banana editor on Krea supports all major formats (PNG, JPEG, WEBP, HEIC, etc.), so simply upload the image you want to modify. If you're using Google's Gemini app, you would similarly begin by selecting or uploading a photo to edit.
Describe the desired change
Using plain English (or any supported language), tell the AI what you want to do with the image. This is where Nano Banana's natural language understanding shines. You might type something like, "Put a red hat on the person's head and change the background to a beach," or "Remove the car in the background and replace it with trees." In Krea's Nano Banana editor, you can optionally use the canvas tool to highlight specific areas or draw rough sketches as hints for the AI. For instance, you can draw an arrow or outline on the part of the image you want changed and add a note like "make this a sunset sky." The key is that Nano Banana interprets your text prompts and any visual cues to apply targeted edits. You just point and describe, and the AI does the heavy lifting.
Let the AI generate the edit
Once you submit your prompt (and the image, of course), Nano Banana will process it and generate the edited image in a matter of seconds. Thanks to the efficiency of the Gemini 2.5 Flash model, the turnaround is very fast. You'll see the result appear, with the specified changes applied. If you're using the Krea editor, this happens right in your browser with no software installation needed. In Google's Gemini app, the edited image would appear in the app interface, complete with an "AI-generated" watermark that Google applies to all such images.
Refine or download the result
If the first result isn't perfect, you can tweak your prompt or make additional edits. Nano Banana allows multi-turn editing, meaning you can edit an already edited image for further adjustments. For example, you might first ask it to add an object, then on the resulting image ask it to change colors or add another element. This iterative approach is supported and showcases Nano Banana's ability to maintain consistency across edits. Once you're happy with the outcome, you can download the final image. On Krea.ai's Nano Banana editor, you can download your edited photo immediately, and it's free to use with no sign-up required.
Some things you can do with Nano Banana
The possibilities for image editing with Nano Banana are broad. You can remove unwanted objects or even entire people from a photo seamlessly. You can change backgrounds, for example, put yourself in front of the Eiffel Tower or on the Moon. It's easy to add new elements to an image (like adding a piece of furniture to a room, or placing a hat on someone's head). You can also apply stylistic transformations: for instance, turn a color photo into a black-and-white sketch, or make a normal photo look like a 3D Pixar-style character. Nano Banana is especially good at maintaining the subject's identity in photos. This means if you ask it to put you in different scenarios or outfits, it will keep your face and features consistent in the edited images, a big improvement over earlier AI models that might change a person's appearance unintentionally. In fact, users have been having fun creating things like 3D figurine-style images of themselves or their pets using Nano Banana, because the model can apply "toy-like" styles while preserving the original likeness. From realistic edits (like cleaning up blemishes or adjusting lighting) to imaginative art (like turning a photo into a fantasy scene), Nano Banana can handle it all thanks to its robust AI capabilities.
Figure 1: Using Krea's Nano Banana editor, an interactive before and after comparison. Drag the slider to see how Nano Banana transforms images with precise edits. Users can draw guidance on the canvas and describe edits in text. Nano Banana interprets these instructions to perform precise image edits while preserving context and image quality.
As demonstrated above, using Nano Banana is as simple as editing images with a magic wand. You tell it what to do, and it does it. Whether through Krea's intuitive canvas tool or Google's Gemini app interface, the workflow is very approachable. In summary: to use Nano Banana, give it an image and a description of what you want changed. The better you can describe your idea, the better Nano Banana can fulfill it. Try to be clear and specific in your prompts for the best results (e.g. "add a blue sky with fluffy clouds" is more precise than "change the background"). But don't be afraid to experiment, part of the fun of this AI is seeing how creatively it can bring your ideas to life.
Different ways to access Nano Banana
Now that you know what Nano Banana is and what it can do, the next question is naturally: how can you access Nano Banana and start using it yourself? The good news is that you don't have to be a Google insider or an AI expert to try this technology. Here are the main ways to access Nano Banana:
Through Krea.ai's Nano Banana Image Editor (Free & Easy): One of the simplest ways to use Nano Banana is via the Krea platform. Krea.ai is a popular generative AI platform that integrates many of the world's best AI models for images and videos. They have made Nano Banana available as a free online image editing tool that anyone can use in a web browser. You can go to Krea's Nano Banana editor page and start editing immediately with no sign-up or credit card needed. This is fantastic for casual users who just want to experiment or make a quick edit without any setup hassle. On Krea, you simply upload an image, enter your prompt or draw on the canvas as described earlier, and the Nano Banana model will generate the result for you in seconds. Because Krea is leveraging the official Nano Banana (Gemini 2.5 Flash) model, you're getting the real deal, the same powerful AI, but through a user-friendly interface. For many people, Krea's platform is the fastest way to get hands-on with Nano Banana.
Through Google's Gemini App (Consumer Access): Google has integrated Nano Banana into the Gemini app (also known as Google's AI testbed app). If the Gemini app is available to you (Google often rolls these out via waitlists or as experimental features in certain regions), you can access Nano Banana there.
Through Google AI Studio or API (Developer Access): For developers or power users, Google provides access to Nano Banana via its cloud services. The model is available in Google AI Studio's "build mode" for creating AI-powered apps.
No matter which path you choose, you'll be tapping into one of the most advanced image editing AIs available today. With Nano Banana now at your fingertips, you can reimagine photos in any way you dream, from fun social media creations to professional-quality edits, all with a few words and clicks. Happy editing!