Nano Banana Pro Master JSON Template AI Image Prompt

The complete, highly structured JSON template for Nano Banana Pro, designed to ensure perfect image generation by allowing detailed control over scene, camera, lighting, color grading, text elements, reference images, characters, grounding, and style constraints.

Prompt

{
  "generation_mode": "thinking|standard",

  "output_specifications": {
    "resolution": "1K|2K|4K",
    "aspect_ratio": "16:9|1:1|9:16|custom",
    "quality_priority": "speed|balanced|quality"
  },

  "scene_description": {
    "primary_subject": "[main focus of image]",
    "environment": "[setting and background]",
    "atmosphere": "[mood and feeling]",
    "style": "[visual aesthetic]",
    "time_of_day": "[if relevant]"
  },

  "camera_controls": {
    "angle": "[camera perspective]",
    "focal_length": "[lens type - wide/standard/telephoto]",
    "depth_of_field": "[shallow/deep, what's in focus]",
    "composition": "[rule of thirds/centered/golden ratio/etc]"
  },

  "lighting_setup": {
    "primary_light": {
      "type": "[natural/studio/dramatic/soft]",
      "direction": "[where light comes from]",
      "intensity": "[bright/moderate/moody]"
    },
    "shadows": "[deep/subtle/minimal]",
    "color_temperature": "[warm/cool/neutral]",
    "special_effects": "[rim light/backlighting/etc if needed]"
  },

  "color_grading": {
    "overall_tone": "[vibrant/muted/monochrome/etc]",
    "color_palette": ["primary color", "secondary color", "accent color"],
    "mood": "[emotional impact of colors]"
  },

  "text_elements": [
    {
      "text_content": "[exact text to render]",
      "position": "[location in image]",
      "font_style": "[typography description]",
      "size": "[relative size]",
      "color": "[text color]",
      "effects": "[glow/shadow/3D/etc]",
      "language": "[if not English]"
    }
  ],

  "reference_images": [
    {
      "image_id": 1,
      "purpose": "style reference|composition reference|color reference|character reference",
      "extract_elements": ["specific elements to copy"],
      "apply_to": "[where to use these elements]",
      "transfer_intensity": "[0-100%]"
    }
  ],

  "characters": [
    {
      "character_id": 1,
      "detailed_description": "[ethnicity, age, gender, facial features, hair, expression]",
      "clothing": "[detailed outfit description]",
      "pose": "[body position and gesture]",
      "position_in_scene": "[spatial placement]",
      "consistency_reference": "[image_id if maintaining across multiple generations]"
    }
  ],

  "grounding": {
    "enabled": true|false,
    "search_queries": ["facts to verify"],
    "data_requirements": ["specific information needed"],
    "accuracy_priority": "high|medium"
  },

  "style_constraints": {
    "artistic_style": "[photorealistic/illustration/3D render/watercolor/etc]",
    "inspiration": "[specific artists or movements if relevant]",
    "must_avoid": ["elements to exclude"]
  },

  "technical_requirements": {
    "intended_use": "[social media/print/web/presentation]",
    "safe_zones": "[areas to keep clear fo]"
  }
}

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.

This prompt is designed to work with a reference photo. Upload your own photo (only one you have the right to use) together with the prompt.

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.