AI Image Editor

Gemini 3.1 Flash Image Generator

Nano Banana 2 Image Generator (Gemini 3.1 Flash Image)

Also known as Gemini 3.1 Flash Image — prompt or reference photos in, one 1K–4K image out, from 6 credits per image.

Portrait detail
Portrait detail
Product texture
Product texture
Scene and light
Scene and light

What Is Nano Banana 2 (Gemini 3.1 Flash Image)?

Nano Banana 2 is the name most people search for when they mean Gemini 3.1 Flash Image, Google's fast image model — and this page runs that model directly in your browser. There are two ways in: text to image, where a written prompt is the only input, and image to image, where you upload up to 9 reference photos to fix a subject, a product, a hairstyle or a layout that words alone would struggle to describe.

The controls are deliberately narrow. Aspect ratio is 1:1, 3:4 or 4:3. Quality is 1K, 2K or 4K. Each generation costs 6, 10 or 12 credits depending on the size you pick, so a draft run is cheap enough to repeat. For a like-for-like model choice, see Gemini 3 Pro Image and the Flash vs GPT Image 2 comparison.

Why Use Nano Banana 2 (Gemini 3.1 Flash Image) Online?

Nano Banana 2 — Gemini 3.1 Flash Image — is the tier to reach for when you need volume rather than perfection. At 6 credits for 1K, three runs cost 18 credits, still less than a single 4K render on Gemini 3 Pro Image at 24. That ratio is what makes it usable for testing a hook, a layout or a colour direction before you commit to a final frame.

The three ratios also map onto how images actually get published: 1:1 for feed and profile, 3:4 for stories and posters, 4:3 for article headers. When a draft is approved, take the same prompt to Gemini 3 Pro Image for the final frame.

3 Steps

How to Use Gemini 3.1 Flash Image in 3 Steps

The generator takes three decisions: what to make, what shape it should be, and how much resolution you want to pay for.
1

Write a Prompt or Add References

Describe the scene, subject and style in the prompt box. If you already have photos of the product, person or space, upload up to 9 of them (JPG, PNG or WEBP, 5MB each) and the prompt works on top of those references.
2

Pick a Ratio and a Quality Tier

Choose 1:1, 3:4 or 4:3, then 1K, 2K or 4K. The credit cost follows the size: 6, 10 or 12 credits, shown before you run the generation.
3

Generate, Review and Download

Run the generation, look at the single result, adjust the prompt or references if something is off, and download the image once it holds up at the size you need.

Gemini 3.1 Flash Image Features

The capabilities that make this model the practical daily option, and the limits worth knowing before you rely on it.

Text to Image from a Prompt

Start with nothing but a written description. Subject, setting, lighting and style all come from the prompt, so the same idea can be rewritten and re-run in seconds.

Image to Image with Reference Photos

Upload photos to anchor the output to a real subject, product or room. The prompt then adjusts style, lighting or props instead of inventing the whole scene.

Three Aspect Ratios

1:1 for feed posts and avatars, 3:4 for stories and vertical print, 4:3 for headers and thumbnails. Pick the frame first so you do not crop a good result later.

1K, 2K and 4K Output

Draft at 1K for 6 credits, step to 2K for 10, and finish at 4K for 12 when the image needs to carry detail on a larger screen or a printed page.

Low Credit Cost per Image

Each 1K generation costs 6 credits and image-to-image pricing matches text to image, so reference-driven runs are not charged at a premium.

Up to 9 Reference Images

Combine several angles, a mood board or a set of product shots in one request. More references usually mean tighter consistency and fewer wasted runs.

What a Run Actually Costs

No packages, no hidden multipliers. The numbers below are the real credit costs and limits this model runs at.

6 Credits for a 1K image, the lowest cost of any Gemini generation here

6

Credits for a 1K image, the lowest cost of any Gemini generation here

1K-4K Three quality tiers at 6, 10 and 12 credits per image

1K-4K

Three quality tiers at 6, 10 and 12 credits per image

9 Reference images accepted in a single image-to-image request

9

Reference images accepted in a single image-to-image request

Frequently Asked Questions

Common questions about Gemini 3.1 Flash Image, its credits, ratios and reference images.

Try Gemini 3.1 Flash Image

Write a prompt, add reference photos if you have them, and spend 6 credits to see the first result. Then adjust the ratio, the size or the references and run it again.

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