Nano Banana Pro: flagship image generation by Google

Nano Banana Pro is Google's flagship image model powered by the Gemini 3 Pro Image engine, released on November 20, 2025. It generates at 2K and 4K, renders the most accurate text on images, blends up to 14 references and gives studio control over light and camera. On Genosai.io pricing starts at 18 credits.

Updated: July 7, 2026

Nano Banana Pro

Contents

What is Nano Banana Pro

Nano Banana Pro is Google's flagship image-generation model. Under the hood it runs the Gemini 3 Pro Image engine, built on Gemini 3 Pro, and it launched publicly on November 20, 2025. It is the top of the Nano Banana family: where the base version and the 2 line cover everyday tasks, Pro targets final assets with the highest quality requirements.

Pro's three headline strengths are resolution, text and control. The model generates at 2K and 4K with different aspect ratios, so frames suit print and large-format work. Its on-image text is the best in the family at launch: from short taglines to long paragraphs, with varied fonts, textures and multilingual layouts. And studio control lets you steer camera angle, focus and color grading, and even transform scene lighting, switching day to night.

References and people are a category of their own here. Nano Banana Pro blends up to 14 source images in one frame — logos, palettes, character angles, product shots — and holds the likeness of up to five people in a scene. Gemini 3 Pro reasoning and world knowledge help it build rich, informative scenes and infographics where meaning matters as much as the picture.

On Genosai.io, Nano Banana Pro is built into the photo studio, and the price scales with resolution: 18 credits for 1K and 2K, and 24 for 4K. Every image carries an invisible SynthID mark and the Content Credentials standard that record provenance. If the flagship rate is more than a task needs, look at the faster Nano Banana 2.

Capabilities

Nano Banana Pro is built for high-stakes work where maximum quality and control matter. Here is where that shows most.

2K and 4K resolution

The model generates at 2K and 4K with different aspect ratios. That resolution headroom makes frames usable for print, outdoor advertising and large screens without upscaling, and fine detail stays crisp even when enlarged.

On-image text

Handling captions is Pro's signature. The model renders legible text from short taglines to long paragraphs, manages varied fonts, calligraphy and textures, and supports multilingual layouts. For posters, covers and infographics where text carries meaning, that is a key advantage.

Working with references

Nano Banana Pro blends up to 14 source images in one frame. You can feed a logo, a color palette, several character angles and product shots — and get a scene that holds a consistent visual style and recognizable objects. That makes the model handy for brand materials.

Studio control of light and camera

The model steers camera angle, focus and color grading, and transforms scene lighting — for example, switching daylight to night or adding bokeh. This brings generation closer to a photographer's studio work, where light and optics are controllable parameters rather than chance.

People and world knowledge

Pro preserves the likeness of up to five people in one scene, which matters for group and ad frames. Gemini 3 Pro reasoning and world knowledge help it build rich, informative scenes and infographics where the picture must be not only attractive but meaningful.

Generation examples

Below are real images generated by Nano Banana Pro on Genosai. Under each frame is the exact prompt.

!Nano Banana Pro portrait, generated on Genosai

_Generated on Genosai.io with Nano Banana Pro. Prompt: Professional studio portrait of a confident young woman, soft natural window light, shallow depth of field, photorealistic, detailed skin texture, editorial photography._

!Nano Banana Pro product shot, generated on Genosai

_Generated on Genosai.io with Nano Banana Pro. Prompt: E-commerce product shot of premium white wireless earbuds in an open charging case on a light marble surface, soft studio lighting, crisp shadows, clean minimal background._

!Nano Banana Pro storefront scene, generated on Genosai

_Generated on Genosai.io with Nano Banana Pro. Prompt: A cozy coffee shop storefront at golden hour with a glowing sign that reads GENOSAI COFFEE, warm cinematic light, photorealistic, ultra detailed._

Notice the studio quality of the frames: the portrait holds editorial light and skin texture, the product shot keeps clean shadows and precise materials for a product card, and the storefront sign reads legibly thanks to strong text handling. This level of finish is what sets the flagship apart from the family's faster models.

How to use on Genosai

Everything runs in the browser through the photo studio — no environment to set up.

  1. Open the Genosai photo studio and sign in.
  2. Pick Nano Banana Pro from the model list.
  3. Describe the scene and set the resolution — 1K, 2K or 4K.
  4. For a text mockup, type the exact caption in quotes and describe the typography.
  5. Attach references — a logo, a palette, character angles or a product.
  6. Refine light and camera, run the generation, then polish the frame with edits if needed.

Pro shines on complex scenes: the more precisely you describe light, angle and the role of each object, the closer the result lands to the studio intent. For brand materials, set the brand colors and logo as references, not just in words.

Prompts

Ready-made templates for high-stakes tasks — drop your details in for the values in angle brackets.

4K poster with the headline "<text>": <scene>, expressive typography, brand colors
Infographic: <topic>, legible labels and numbers, clean composition, modern style
Editorial portrait: <who>, studio light, controlled focus, cinematic color grading
Group scene: <up to five characters> in <location>, keep each face recognizable, natural light
Brand frame: place <product> into a scene using logo and palette references, 2K resolution
Change the lighting of this frame from day to night, add bokeh, keep the objects
4K ad mockup: <product and tagline "<text>">, studio light, large legible letters

Generation cost

On Genosai, Nano Banana Pro is priced by resolution: 18 credits for 1K and 2K, and 24 credits for 4K. It is a flagship rate, justified where maximum quality matters — final posters and covers with text, infographics, ad and group scenes, print-ready frames. For drafts and high-volume work, Nano Banana 2 or Lite are cheaper, with Pro reserved for the final frame.

Starter credits after sign-up let you try Nano Banana Pro for free, and top-ups work with local cards without a VPN. For current rates and your balance, see Pricing.

How it compares

Nano Banana Pro is the flagship for high-stakes work. Next to it in the catalog are a faster family version and strong rivals of the same class — the choice depends on whether you need maximum quality or a balance of price and speed.

ModelClassStrengthPrice per shot
Nano Banana ProFlagship4K, best text, studio controlfrom 18 credits
Nano Banana 2New generationBalance of speed and qualityfrom 8 credits
Flux 2 ProRivalDetail and artistic stylefrom 5 credits
ChatGPT Image 2RivalVersatility and prompt-followingfrom 6 credits

If the flagship rate is more than an everyday task needs, take Nano Banana 2. Among strong rivals of the same class, compare Flux 2 Pro, ChatGPT Image 2 and Seedream 5 Lite. For the full list of models, see the model catalog.

Limitations and tips

Nano Banana Pro is the most powerful but also the most expensive option in the family. The flagship rate is justified for final assets, but for drafts, thumbnails and bulk generation it is overkill: Nano Banana 2 or Lite work faster and cheaper there. A sensible strategy is to scout the composition on a lighter model and hand the final 4K frame with text to Pro.

Like any generative model, Pro can get small geometry, hands and very long text wrong — check important details and captions, refine the prompt and regenerate if needed. Every image carries an invisible SynthID mark and Content Credentials recording provenance.

To get the most out of it, use the flagship's strengths: feed the brand style as references rather than words alone, put the exact caption in quotes, and describe light, angle and focus as you would in a studio. For group scenes, state the role of each character and ask the model to keep them recognizable — that helps it hold up to five people in the frame.

FAQ

What is Nano Banana Pro?

It is Google's flagship image model powered by the Gemini 3 Pro Image engine, released on November 20, 2025. It generates at 2K and 4K, delivers the family's best on-image text and studio light control. On Genosai pricing starts at 18 credits.

How does Nano Banana Pro differ from Nano Banana 2?

Pro is the flagship: more accurate text, studio control over angle, focus and light, and up to 14 references in one frame. Nano Banana 2 is faster and cheaper with a balance of quality and speed. Pro is the pick for complex, high-stakes work.

How much does a Nano Banana Pro generation cost on Genosai?

The price depends on resolution: 18 credits for 1K and 2K, and 24 credits for 4K. It is a flagship rate, justified for final assets, text mockups and frames where maximum quality matters.

How good is Nano Banana Pro at text on an image?

At launch it was the best in the family. The model renders legible text from short taglines to long paragraphs, supports varied fonts, textures and multilingual layouts. For posters and infographics, that is a key advantage.

How many references does Nano Banana Pro accept?

The model blends up to 14 source images in one frame — logos, color palettes, character angles, product shots. This lets you assemble brand scenes precisely and hold a consistent visual style.

What tasks is Nano Banana Pro worth using for?

For final assets with high requirements: posters and covers with text, infographics, ad and group scenes, print-ready 4K frames. For drafts and high-volume work, Nano Banana 2 or Lite are cheaper and faster.

Try Nano Banana Pro on Genosai