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Nano Banana Pro (Google Gemini 3 Pro Image Preview) is Google’s flagship image generation model. It features deep visual reasoning, native 4K resolution support, and industry-leading text rendering capabilities.

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Why use it?

  • Native 4K Resolution: Generate images up to 4096x4096 pixels, perfect for print and professional marketing.
  • Exceptional Text Rendering: Produces legible, correctly spelled text within images—ideal for logos, menus, and infographics.
  • Built-in Prompt Enhancement: The model has internal prompt enhancement logic, so Magic Prompt is not needed (and not applied).
  • Deep Visual Reasoning: Uses a “thinking process” to plan composition, lighting, and logic before rendering.

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Details

  • Developer: Google DeepMind
  • Architecture: Gemini 3 Pro with visual generation capabilities
  • Strengths: 4K output, text rendering, photorealism, complex compositions, multi-character scenes.
The model supports three scale tiers with common aspect ratios:1K Scale
  • 1024x1024 (1:1)
  • 848x1264 (2:3)
  • 1264x848 (3:2)
  • 896x1200 (3:4)
  • 1200x896 (4:3)
  • 928x1152 (4:5)
  • 1152x928 (5:4)
  • 768x1376 (9:16)
  • 1376x768 (16:9)
  • 1584x672 (21:9)
2K Scale
  • 2048x2048 (1:1)
  • 1696x2528 (2:3)
  • 2528x1696 (3:2)
  • 1792x2400 (3:4)
  • 2400x1792 (4:3)
  • 1856x2304 (4:5)
  • 2304x1856 (5:4)
  • 1536x2752 (9:16)
  • 2752x1536 (16:9)
  • 3168x1344 (21:9)
4K Scale
  • 4096x4096 (1:1)
  • 3392x5056 (2:3)
  • 5056x3392 (3:2)
  • 3584x4800 (3:4)
  • 4800x3584 (4:3)
  • 3712x4608 (4:5)
  • 4608x3712 (5:4)
  • 3072x5504 (9:16)
  • 5504x3072 (16:9)
  • 6336x2688 (21:9)
Pricing is based on the resolution scale:
  • 1K Scale: $0.138 per image
  • 2K Scale: $0.138 per image
  • 4K Scale: $0.244 per image
  • Model License: Google Cloud Terms of Service
  • Generated Images: Subject to Google’s usage policies.

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Magic Prompt

Magic Prompt is not supported for this model. Nano Banana Pro has built-in prompt enhancement capabilities, making our Magic Prompt layer redundant. Your prompts are sent directly to the model.
Use this model when you need the highest quality output, especially for text-heavy designs, professional print materials, or when 4K resolution is required.