Flux ArtTo 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 and https://flux-art.cn), 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.
I generated multi-platform images for a pair of earbuds: first I made a 4K master image, then used Nano Banana 2's 14 aspect ratios to instantly generate a 1:1 hero image, a 3:4 vertical image for Xiaohongshu (RED), and a 16:9 horizontal banner — with the subject never cut off. For Amazon, I generated a separate compliant version with a pure white background and no text overlay. One master image replaced redoing every version from scratch.
Image: Flux Art, an all-in-one platform with 50+ models, full-power unthrottled access, and up to 4K resolution (source: flux-art.ai and flux-art.cn)
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 and https://flux-art.cn. 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.