Nano Banana Pro has taken visual editing and creation to a completely separate level, and now it seems unrivaled when it comes to upscaling images.
Nowadays, when it comes to old photos, we often turn to upscale tools thanks to the advancement of artificial intelligence. There are many different tools like Remini and Upscayl that have been serving in this field for years, but many of them require payment, extra memberships, or involve complicated processes.
Since Nano Banana first came out, it raised the bar in photography, visual creation, and editing. Now, with Nano Banana Pro, that bar has been set even higher. Today, we will look at just one of the things Nano Banana Pro can do: Image Upscaling.
How to Upscale Photos to 4K for Free
Here is the simple, step-by-step guide to turning your blurry memories into high-definition masterpieces.
Step #1: Login to Gemini
First, we log in to Gemini.
- If you are a free user, you can use Nano Banana Pro and Gemini 3 Pro with some limitations.
- If you are a Google AI Pro subscriber, you have no limits in this regard.
How to select the model:
- Open Gemini.
- From the ‘Tools’ section at the bottom left of the chat box, select ‘Generate Image’.
- From the ‘Select your model’ section at the bottom right, choose ‘Thinking with 3 Pro’.
Step #2: Upload Image and Enter Prompt
With the Gemini chat screen open, we can now upload the image we want to upscale. The command we need to use at this point is incredibly simple.
While you can create detailed prompts using various AI tools, for this process, a simple command is enough:
Prompt: “Upscale to 4K”
How Good Are the Results?
We highly recommend using this method, especially for your childhood photos. You can make any memory you can think of look as high-quality as if it were taken with today’s professional cameras.
We tested this on several photos. You can examine the comparisons below:
BEFORE
AFTER
BEFORE
AFTER
BEFORE
AFTER
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