Nano Banana Pro Prompting Strategy for Stable Output

① Always switch the mode to 'Thought' or 'Pro' (I feel 'Thought' is better)
② 'Describe the scene in sentences' rather than listing keywords
③ Specify the subject, background, and atmosphere as a set of three points
④ Don't aim for perfection in one go; apply 'gradual corrections'
⑤ Avoid negative expressions; give instructions in positive sentences
⑥ Add quality keywords (4K, high resolution) in English
⑦ Clearly state the purpose at the beginning (e.g., "Diagram for a proposal")
⑧ Exclude unnecessary elements using negative prompts
⑨ Do not attempt complex edits all at once; proceed in segments
⑩ Save frequently used prompts as templates

This is a comprehensive set of 10 instructions and strategies for writing effective prompts for Nano Banana Pro (Gemini 3 Pro Image), aimed at stabilizing output and avoiding garbled text. It emphasizes switching to 'Thought Mode' or 'Pro Mode', using descriptive sentences instead of keyword lists, specifying subject/background/atmosphere, and using positive language and English keywords for quality.

How to use this prompt

Copy the prompt above and paste it into an AI image generator such as Google Gemini (Nano Banana) or a similar tool. Replace any bracketed placeholders with your own details, then generate and refine the result.

Prompt collection credit: YouMind Awesome Nano Banana Pro Prompts (CC BY 4.0). Credit to the original prompt creators. To request removal of a prompt or image, please contact us.