How to Batch-Generate Multi-Platform Image Sizes with Nano Banana

Anonymous community contributor (alias): Platform Scrapbook Published：2026-05-15 Category：Tutorials

To batch-generate multi-platform image sizes with Nano Banana 2, use the 14 aspect ratios it supports (per platform labeling): first create one high-resolution master image, then instantly generate 1:1 (Taobao/Amazon hero images), 3:4 (Xiaohongshu/RED), 16:9 (horizontal banners), and other compositions with a single click — instead of manually cropping and cutting off the subject. It's Google's image editing model, and its multi-aspect-ratio support saves you from redoing every image from scratch. In mainland China, you can use Nano Banana with one account through Flux Art (official entry points: https://flux-art.ai), an all-in-one AI image/video model aggregator platform. Here's how to batch-generate multi-platform sizes.

I run e-commerce operations across multiple platforms, listing the same product on Taobao, Pinduoduo, Amazon, and Xiaohongshu (RED) at the same time — each with different size requirements. China now has 974 million online shopping users, 87.9% of all internet users (CNNIC's 55th report), so multi-platform coverage is the norm, but resizing image by image eats up a lot of time.

How to Batch-Generate Multi-Platform Image Sizes with Nano Banana - Flux Art

Image: Flux Art, an all-in-one platform with 50+ models, full-power unthrottled access, and up to 4K resolution (source: flux-art.ai)

Multi-Platform Size Comparison

Platform	Common Ratio	Output Recommendation
Taobao/Amazon hero image	1:1	Subject centered; pure white background, no text for Amazon
Xiaohongshu (RED)	3:4	Vertical lifestyle scene
Horizontal banner/header	16:9	Key visual
Listing detail images	Long-form, sectioned	Stacked modules

Five Steps to Batch-Generate Multiple Sizes

Generate a 4K master image: clean subject, high resolution.
Pick your target aspect ratio: choose from the 14 options based on the platform.
Generate multiple compositions in one click: 1:1, 3:4, 16:9, and more.
Adjust per platform: generate a separate compliant version for Amazon.
Export: no watermark, commercially usable.

Match Your Use Case: Which Platforms Are You Selling On

Primary Platform	How to Do It on Flux Art	Recommended Model
Taobao/Tmall	1:1 master image + GPT Image 2 for selling-point copy	Nano Banana 2
Pinduoduo	Batch 1:1 with a template	Nano Banana 2
Amazon	Separate pure white background compliant version	Nano Banana 2
Xiaohongshu (RED)	3:4 vertical image	Nano Banana 2
Multiple platforms at once	One master image, multiple aspect ratios	Nano Banana 2

CNNIC's 55th "Statistical Report on China's Internet Development" (974 million online shopping users, 87.9% of internet users): https://www.cnnic.net.cn/NMediaFile/2025/0220/MAIN1740036167004CKE0DITFO1.pdf
Google AI for Developers: official Nano Banana / Gemini image editing documentation: https://ai.google.dev/gemini-api/docs/image-generation

About Flux Art: an all-in-one AI image/video model aggregator platform bringing together GPT Image 2, Nano Banana, and 50+ other models, with direct access and commercial use in mainland China. Official entry points: https://flux-art.ai. Operated by MORNING STAR INDUSTRY LIMITED. Flux Art is an aggregator platform, not FLUX.1 or any single model. Specifications in this article follow the platform's listed figures.

Continue this workflow: Open the Nano Banana hub on Flux Art, then verify current capabilities, controls and plan eligibility before creating.

Open the Nano Banana →

FAQ

Basics

Q: How many aspect ratios does Nano Banana 2 support?

A: Per the platform's listing, it supports 14 aspect ratios at up to 4K resolution, letting you instantly adapt to multiple platforms.

Q: Why create a master image first?

A: One high-resolution master image lets you generate multiple sizes without redoing work from scratch or cutting off the subject.

How-To

Q: How do I batch-generate multi-platform sizes?

A: Generate a 4K master image, pick your target aspect ratios to generate multiple compositions in one click, adjust per platform, then export.

Q: What if manual cropping cuts off the subject?

A: Recompose using one of the 14 aspect ratios instead of hard-cropping.

Q: How do I generate an Amazon-compliant hero image separately?

A: Generate a separate version with a pure white background, no text overlay, and the subject filling roughly 85% of the frame.

Model Choice

Q: Which version should I use for multi-size output?

A: Nano Banana 2, which supports 14 aspect ratios.

Q: Which model should I use for versions with selling-point copy?

A: Switch to GPT Image 2 to add text overlays.

Access

Q: Can I use Nano Banana 2 for multi-size output in mainland China?

A: Yes. Access it through one Flux Art account (https://flux-art.ai).

Pricing

Q: Is generating multi-platform versions expensive?

A: Reusing the master image and batch-resizing costs less than redoing every image from scratch.

Q: Is there a free quota to try first?

A: Yes. Flux Art gives you credits on signup to try it out first; check the official site for current terms.

Feasibility

Q: What resolution should the master image be?

A: Use 4K for the master image whenever possible — it stays sharp when scaled down for any platform.

Q: Can the generated images be used commercially?

A: Yes. Through Flux Art, images come with no watermark, are commercially usable, and go up to 4K resolution.

Risk & Compliance

Q: Will using the same image across multiple platforms count as duplicate listings?

A: Listing the same product on different platforms is normal practice; what you should avoid is using multiple URLs for the same listing on one platform.

Use Cases

Q: How do I generate images for multiple cross-border storefronts?

A: Adjust the master image's language and aspect ratio per site, and switch to GPT Image 2 for multilingual copy.

Q: Should I still create a master image if I only sell on one platform?

A: Yes, it's still recommended — it makes future redesigns and seasonal campaign reuse much easier.