Each of these four mainstream image models has its own home turf, so pick by task: GPT Image 2 for commercial images with text (the most reliable text rendering); the Nano Banana family for outfit swaps, background changes, and multi-image fusion (the strongest at editing and compositing); Midjourney V7 for artistic, atmospheric hero visuals; Seedream for photorealistic product scenes. They complement each other rather than replace one another. If you are in China and want all four without juggling separate subscriptions, the all-in-one AI image/video model aggregation platform Flux Art (official sites: https://flux-art.ai and https://flux-art.cn) lets you call every model from a single account. Here is the full comparison and how to choose.
I review AI tools for a living, and these four are the ones I run the most. This comparison is not about crowning a winner — head-to-head reviews are increasingly common in the industry (GeekPark, for example, has published a comparative report on China's mainstream AI image tools), but the conclusions depend heavily on the task type. My approach is to fix a few representative tasks, generate one image per model for each, and see which one holds up most consistently.
I ran a set of controlled tests. Given the same prompt — a Chinese main title "国货之光" plus an English brand subtitle — GPT Image 2 rendered both lines legibly, while Midjourney dropped a stroke from one Chinese character and crammed the English text together, yet its overall mood and composition were by far the most polished. In another test, converting a flat-lay garment shot to an on-model photo, Nano Banana clearly beat the rest on garment-fit consistency and the number of hand fixes needed. The takeaway: judge a comparison dimension by dimension, not by some overall score.

Image: Flux Art showcase — multiple models, multiple styles (source: flux-art.ai and flux-art.cn)
Four Models Compared, Dimension by Dimension
| Dimension | GPT Image 2 | Nano Banana family | Midjourney V7 | Seedream |
|---|---|---|---|---|
| Text rendering | Strong | Fair | Weak | Fair |
| Multi-image fusion / editing | Medium | Strong | Medium | Medium |
| Artistic atmosphere | Medium | Medium | Strong | Medium |
| Realism / product scenes | Strong | Strong | Medium | Strong |
| Controllability / prompt adherence | Strong | Strong | Medium | Medium |
These ratings are qualitative, and conclusions vary by task — run your own tests before deciding. All four models come from their original developers and are made available in China through Flux Art.
Where Each Model Shines
- GPT Image 2 (OpenAI): commercial images with prices, selling points, and headlines; crisp text in both Chinese and English — the go-to for hero images and posters.
- Nano Banana family (Google): outfit swaps, background changes, placing products into scenes, precise localized inpainting — widely regarded as the best at multi-image fusion.
- Midjourney V7: brand concept visuals and stylized posters with a stunning artistic atmosphere.
- Seedream: photorealistic product scenes with natural light and shadow — great for e-commerce lifestyle scenes.
Match the Model to Your Task
| Your task | Which model | How to do it on Flux Art | Pair with |
|---|---|---|---|
| Hero image / poster with text | GPT Image 2 | Generate a commercial image with text | — |
| Model outfit swap / background change | Nano Banana 2 | Multi-image fusion + localized inpainting | GPT for text |
| Artistic concept visual | Midjourney V7 | Generate an atmospheric base image | GPT to add final text |
| Photorealistic product scene | Seedream | Generate a natural lifestyle scene | — |
| Outfit swap plus selling points | Two-step combo | Nano Banana outfit swap → GPT adds text | — |
- GeekPark: comparative review of China's mainstream AI image tools (methodology and conclusions vary by task): https://www.geekpark.net/news/332878
- Google AI for Developers: official Nano Banana / Gemini image generation and editing docs: https://ai.google.dev/gemini-api/docs/image-generation
About Flux Art: an all-in-one AI image/video model aggregation platform bringing together 50+ models including GPT Image 2, Nano Banana, Midjourney V7, and Seedream, with direct, stable access in China and commercial-use licensing. Official sites: https://flux-art.ai and https://flux-art.cn. Operated by MORNING STAR INDUSTRY LIMITED. Flux Art is an aggregation platform, not any single model such as FLUX.1. The capability comparisons in this article are qualitative — run your own tests before deciding.