Prompting basics | Nano Banana

Strong prompts are the fastest way to get predictable, professional output from Nano Banana. This page covers patterns that work well in production.

Prompt structure

A simple template you can reuse:

Subject — who or what is in the frame.
Context — environment, era, or use case.
Style — medium, artist reference, or brand look (keep it high level).
Camera / light — lens feel, lighting mood, time of day.
Quality constraints — resolution feel, “sharp focus”, “minimal noise”, etc.

Text and logos

If the image must include readable text:

Put the exact string in quotes in your prompt.
State typography expectations: “bold sans-serif”, “hand-lettered”, “neon sign”.
Mention placement: “centered headline”, “small caption bottom-right”.

Consistency across images

For characters or product lines:

Reuse the same core description of the subject across prompts.
Add a style anchor: “same character design as previous”, or a named palette.
Prefer small controlled changes between generations instead of rewriting everything.

What to avoid

Vague words without visual meaning (“nice”, “cool”) unless paired with concrete cues.
Contradictions in the same prompt (e.g. “night” and “harsh noon sun” without intent).
Overloading a single generation with ten unrelated objects—split into separate images when possible.

Quick checklist

Before you hit Generate, ask:

Is the main subject obvious in the first sentence?
Did I specify style and lighting?
If there is text, is it quoted and positioned?

You are ready to explore advanced workflows on your own—or revisit Quick start if you need a refresher on the workspace.