Nano Banana Pro Launch: 4K Image Generation

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Key Highlights

• 4K Support: Generate images in 1K, 2K, and 4K resolutions
• Best Text Rendering: Industry-leading text clarity in images
• Local Editing: Adjust camera angle, focus, color grading, lighting
• Gemini 3 Pro Powered: Advanced reasoning and real-world knowledge
• Stable & Fast: ~20 seconds generation time, “strong + stable” feedback

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Background

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Feature Comparison

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Core Features

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🎨 4K High Resolution

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✍️ Best Text Rendering

• Clear & Readable: Sharp text edges, accurate font recognition
• Rich Styles: Multiple fonts, sizes, colors, and effects
• Multi-language: Perfect support for English, Chinese, and more
• Precise Layout: Text position, alignment, and spacing

• 📊 Posters and promotional materials
• 🏷️ Brand slogans and advertisements
• 📰 Social media graphics
• 🎨 Packaging and product labels

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🛠️ Local Editing

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Use Cases

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Code Example

import openai

client = openai.OpenAI(
    api_key="your-api-key",
    base_url="https://api.apiyi.com/v1"
)

# Basic image generation
response = client.images.generate(
    model="gemini-3-pro-image-preview",
    prompt="A modern minimalist coffee shop poster with text 'Morning Brew', warm tones, professional photography",
    n=1,
    size="1024x1024",
    quality="hd"
)

image_url = response.data[0].url
print(f"Generated image: {image_url}")

# 4K high-res generation
response = client.images.generate(
    model="gemini-3-pro-image-preview",
    prompt="A 4K tech company poster with text 'AI Changes Future', futuristic style, blue tones",
    size="4096x4096",
    quality="hd"
)

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Best Practices

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Prompt Tips

✅ Good Prompt:
"A modern minimalist poster with clear, readable text 'Morning Coffee',
sans-serif font, white text on dark blue background, centered"

❌ Avoid:
"Poster with text"  # Too vague

✅ Good Prompt:
"A 4K ultra-HD product photo, rich details, professional photography,
studio lighting, white background, centered product, soft shadows"

❌ Avoid:
"Product photo"  # Lacks detail

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Resolution Guide

• 1K (1024×1024):
  • Quick prototypes
  • Social media (Instagram, Twitter)
  • Web thumbnails
• 2K (2048×2048):
  • Website banners
  • Digital advertising
  • Presentations
• 4K (4096×4096):
  • Print materials (posters, brochures)
  • Large displays and billboards
  • Professional design projects

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Pricing

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Migration Guide

# Old version
model="gemini-2.5-flash-image"

# New version - just change model name
model="gemini-3-pro-image-preview"

# All other parameters remain the same

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Getting Started

1. Sign up: https://api.apiyi.com
2. Add credits: Enjoy recharge bonuses
3. Check docs: Nano Banana Guide
4. Start using: Change model to gemini-3-pro-image-preview