What is Nano Banana Prompt Generator?
Nano Banana Prompt Generator — A Nano Banana prompt generator expands a rough idea into the conversational, fully-described prompt format Gemini's image generation and editing model responds to best, including explicit keep-unchanged instructions for edits.
This Nano Banana prompt generator writes prompts for Gemini's image model in the style it responds to best: conversational, specific, full-sentence descriptions — the opposite of Midjourney-style keyword strings. Nano Banana became the default way millions of people edit photos, and its strengths are particular: it follows natural-language instructions precisely, keeps characters consistent across edits, and renders text inside images unusually well. The generator leans into all three, and for edit ideas it states both what should change and what must stay the same — the detail that separates clean edits from mangled ones.