🍌 Nano Banana Prompt Guide

High-quality text-to-image prompt writing guide

The Nano Banana series models are known for their vivid color expression, smooth material details, strong character portrayal, and controllable composition. To help you consistently output the styles they excel at, this Prompt Guide provides structured writing methods, techniques, templates, and negative prompt references.

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1. Nano Banana Style Characteristics

Understanding Model Features

Nano Banana image generation has the following commonalities:

  • Strong Lighting：High contrast, clear light source direction
  • Sharp Edges + Soft Materials：Smooth skin, clean object edges
  • Natural Saturated Colors：Rich colors without excessive explosion
  • Precise Composition Understanding：Depth of field, rule of thirds, prominent subject
  • Especially Good at
  • High Performance in

Understanding these characteristics helps you write optimal prompts.

Nano Banana Style Characteristics Example
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2. Standard Prompt Structure

Professional Nano Banana Prompts should be written in the following order:

[Subject] + [Appearance/Attributes] + [Action/Pose] +
[Scene Environment] + [Lighting] + [Style] + [Detail Enhancement] +
[Camera Parameters (Optional)] + [Rendering Style (Optional)]

For example:

a young girl with silver hair, soft glowing eyes, wearing a futuristic jacket,
standing beside neon-lit vending machines on a rainy street,
cinematic lighting, reflective puddles, shallow depth of field,
ultra-detailed, soft rim light, crisp outlines, nano banana style
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3. Detailed Module Writing

① Subject

The clearer, the better:

  • "a girl"
  • "a neon samurai"
  • "a floating jellyfish robot"
  • "an ancient wooden house"

② Appearance / Attributes

Use 2~5 keywords:

  • "silver hair, short bob"
  • "blue glowing circuits on the face"
  • "thick watercolor texture"
  • "soft pastel skin tone"

③ Pose / Action

  • "looking back over the shoulder"
  • "walking through snow"
  • "holding a lantern"
  • "floating gently in the air"

④ Scene Environment

  • "neon city alley with rain"
  • "underwater temple ruins"
  • "sunset beach with long shadows"
  • "lush forest with floating particles"

⑤ Lighting

Nano Banana's focus:

  • "cinematic lighting"
  • "warm rim light"
  • "global illumination"
  • "volumetric fog + god rays"
  • "overcast soft light"

⑥ Style

  • "anime realism"
  • "soft 3D-rendered look"
  • "Studio Ghibli inspired"
  • "oil painting with clean outline"
  • "high-polish CG illustration"

⑦ Detail Enhancement

  • "ultra-sharp details"
  • "fine texture"
  • "glossy reflections"
  • "subsurface scattering skin"
  • "perfect composition"
Module Examples
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4. Negative Prompt

To make Nano Banana output cleaner:

blurry, low quality, distorted face, bad hands, extra limbs, noisy background, pixelated, 
overexposed, underexposed, dull colors, messy composition, watermark, text, logo

Professional version:

bad anatomy, unnatural proportions, blurry edges, grain, jpeg artifacts, 
poor lighting, flat colors, duplicated features, malformed hands, cropped head
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5. Nano Banana Exclusive Prompt Templates

📌 Template A: Clear Realistic Anime Style (Most Recommended)

[character description], expressive eyes, soft glowing skin,
standing in [environment], cinematic lighting, clean outlines,
nano banana style, high detail, realistic textures, shallow depth of field,
soft rim light, particles floating, ultra clear focus

📌 Template B: Cyberpunk Sci-Fi Style

cyberpunk [subject] with neon reflections, glowing circuits,
rain-soaked streets, volumetric fog, high contrast lighting,
detailed metal textures, nano banana style, hyper-detailed

📌 Template C: Cute Healing Style

cute [character], round shapes, pastel palette, soft lighting,
warm atmosphere, simple background, gentle textures,
nano banana soft style

📌 Template D: Fantasy Epic Style

epic fantasy [character], flowing cloak, mystical particles,
ancient ruins in the background, dramatic backlight,
nano banana painterly style, intricate details
Template Examples
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6. Advanced Techniques (For Professional Users)

① Use 'Key Adjectives + Stable Structure' Combinations

For example:

  • "glossy + cinematic"
  • "soft + high detail"
  • "neon + wet reflections"
  • "pastel + smooth shading"

② Control Composition

Nano Banana is very sensitive to composition words:

  • "close-up portrait"
  • "full body shot"
  • "wide angle view"
  • "from below / from above"

③ Control Camera Style (Optional)

shot on 35mm
f/1.4
bokeh background
telephoto compression
8k raw photo

④ Add Color Control

Enhance overall atmosphere:

  • "warm orange-blue contrast"
  • "cool foggy palette"
  • "neon pink highlights"
  • "golden hour sunlight"
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7. Complete Examples (Ready to Use)

Example 1: Healing Anime Portrait

a cute girl with soft brown hair and gentle eyes, wearing a white scarf,
standing beside autumn trees with warm sunlight,
soft cinematic lighting, pastel color palette,
nano banana style, smooth skin texture, clear outlines,
particles floating in the air
Example 1: Healing Anime Portrait

Example 2: Cyberpunk Character

cyberpunk samurai with glowing neon armor, blue and pink reflections on metal,
standing in a rainy futuristic street, fog and holograms everywhere,
dramatic lighting, sharp outlines, nano banana hyper-detail style,
wet reflections on the ground, high contrast composition
Example 2: Cyberpunk Character

Example 3: Realistic Fantasy Scene

an elven mage holding a glowing staff, cloak fluttering,
ancient stone ruins behind, volumetric god rays,
epic cinematic lighting, nano banana painterly detail,
fine textures, deep atmosphere
Example 3: Realistic Fantasy Scene
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Conclusion: How to Write Good Nano Banana Prompts?

Remember 3 principles:

  1. Clear subject
  2. The more specific the lighting and environment, the better
  3. Don't randomly stack style words, combine them cleanly