chatgpt-imagesIMAGE
GPT Image 2.5 beats NanoBanana in thumbnail comparison
The author reran thumbnail tests and found GPT Image 2.5 now beats NanoBanana, which had won before; the old prompting style was making GPT Image overcook thumbnails and show artifacts.
Alex Volkov
@altryneArchived 2026.09.14Originally posted 2026.09.11
Alex Volkov @altryneOriginally posted 2026.09.11
I redid my thumbnail ablations and GPT image 2.5 wins over NanoBanana (which won for me previously) Apparently my old prompting style was causing the GPT image to "overcook" my thumbnails making artifacts show.
This post quotes another post: x.com/thursdai_pod/status/2098396400279249123
x.com/altryne/status/2098430308647666082Archived 2026.09.14 19:45