Prompting Tips for Gemini 2.5 Flash Image (Nano Banana)

Łukasz Grochal

Creating sharper visuals with Gemini 2.5 Flash Image, also known by its code name nano-banana, starts with defining a clear subject or character. A detailed first prompt ensures consistency across edits, letting you reposition the same figure in different scenes. Refinements are simple: adjust colors, add objects, or fine-tune details without losing the image’s essence.

For imaginative results, blend ideas like an astronaut in a rainforest courtroom and Gemini merges them smoothly. Style changes are equally flexible, shifting from photography to sketches or illustrations. Complex prompts also work: describe someone holding a cake, then ask what happens if they trip, and the model applies logical reasoning to the scenario.

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