The problem: too many image models, which one do I use?

New image-generation models keep landing — Nano Banana, Nano Banana Pro, GPT Image 2, ByteDance's Seedream — and each claims to be the best. But when you actually need one good image, the real questions are:

Same request, different model — how much does the output actually differ?

Re-tuning the prompt for every model is exhausting.

Comparing them means hopping between platforms and signing up over and over.

So I ran a small, reproducible test: fix one prompt, feed it to several models, look at the differences, and boil it down to a selection cheat sheet. To avoid the multi-platform shuffle I did the comparison on cvy.ai, where you switch models from a dropdown on the same prompt — no re-registering, no rewriting.