16:9 ratio for images in Gemini 2.5 Flash

A few days ago, I was able to create images in 16:9 or any size with Gemini 2.5 Flash. Since yesterday, it only generates 1:1 images. I’ve tried every way possible to improve the prompt so that Gemini generates the image in 16:9. Does anyone know the solution?

2 Likes

Hi @banray
Could you please clarify if you are referring to the Gemini 2.5 Flash Image Preview model / Nano banana model?