Hey everyone. If you have been following my deep dives into the forensics of AI images and building the AI Sparkle Remover, you know I generate a lot of test images. Recently, I have been pushing the boundaries of Google Gemini's native image generation capabilities, specifically exploring their latest image model architecture.
Today, I want to walk you through exactly how to access the absolute highest quality image generation inside Gemini using the Nano Banana Pro workflow, and share a specific prompt I use to stress test texture generation.
Unlocking Nano Banana Pro
First, let us clear up some naming confusion. The underlying engine powering image generation in the Gemini App is officially called Gemini 3 Flash Image. However, within the generative community, it is widely known by its codename: Nano Banana 2. This new model completely replaces the older Nano Banana architectures.
But here is the secret trick. If you are on a premium tier like AI Plus, Pro, or Ultra, you have access to a much more powerful variant called Nano Banana Pro. You cannot just select it from a dropdown menu right away. It requires a specific workflow to trigger the high fidelity upscale.
Here is how you do it:
- Type your prompt into the Gemini interface and hit generate. This uses the standard Nano Banana 2 model.
- Once the image generates, hover over the image result.
- Click the three dot menu icon in the corner of the image.
- Select the "Redo with Pro" option.
This forces the system to reprocess your latent space request through the much heavier, compute intensive Nano Banana Pro model. The difference in fine detail, lighting accuracy, and prompt adherence is massive.
The Ultimate Texture Prompt
To really test how well Nano Banana Pro handles complex, contradictory textures, I like to mix organic materials with synthetic ones. My absolute favorite test is combining the rough, waxy texture of a crayon with the sharp, reflective nature of glitter.
If you want to try it yourself, copy and paste this exact prompt into Gemini. Just swap out the bracketed text with whatever character and colors you want to test:
DRAWING a drawing of [Character], crayon on white paper, in the style of a children's book illustration, simple, cute, and full-color, with [two glitter accent colors] glitter accents and high detail.
The Result
When you run this through the "Redo with Pro" workflow, the results are incredible. The model perfectly captures the uneven, grainy strokes of a wax crayon pressing against thick paper, while selectively applying sharp, highly reflective glitter specks exactly where you requested them.
Of course, as soon as you generate this beautiful image, you will notice that familiar little visible sparkle logo sitting right there in the bottom right corner. And as we all know by now, that visible layer is just an alpha compositing equation waiting to be reversed.
Feel free to take your newly generated Nano Banana Pro image and run it straight through our AI Sparkle Remover tool. It handles the high resolution output flawlessly. Just remember, while the visible watermark mathematically vanishes, the invisible SynthID fingerprint is still woven deep into those beautiful glitter pixels!