Gemini 2.5 Flash Image

I've updated the GenAI Image comparison site (which focuses heavily on strict text-to-image prompt adherence) to reflect the new Google Gemini 2.5 Flash model (aka nano-banana).

https://genai-showdown.specr.net

This model gets 8 of the 12 prompts correct and easily comes within striking distance of the best-in-class models Imagen and gpt-image-1 and is a significant upgrade over the old Gemini Flash 2.0 model. The reigning champ, gpt-image-1, only manages to edge out Flash 2.5 on the maze and 9-pointed star.

What's honestly most astonishing to me is how long gpt-image-1 has remained at the top of the class - closing in on half a year which is basically a lifetime in this field. Though fair warning, gpt-image-1 is borderline useless as an "editor" since it almost always changes the whole image instead of doing localized inpainting-style edits like Kontext, Qwen, or Nano-Banana.

Comparison of gpt-image-1, flash, and imagen.

https://genai-showdown.specr.net?models=OPENAI_4O%2CIMAGEN_4...

What's interesting is that Imagen 4 and Gemini 2.5 Flash Image look suspiciously similar in several of these tests cases. Maybe Gemini 2.5 Flash first calls Imagen in the background to get a detailed baseline image (diffusion models are good at this) and then Gemini edits the resulting image for better prompt adherence.