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2026-03-22

Image Resolution Explained: HD, 4K, and AI Generation

Understanding image resolution in AI generation. HD, 4K, and best practices for different uses.

Image resolution matters enormously depending on how you plan to use your AI-generated images. Understanding the basics of resolution, aspect ratios, and file formats helps you get the best results for every use case.

Resolution Basics

Resolution is measured in pixels -- width times height. HD is 1920x1080, 4K is 3840x2160. For web use, 1024x1024 or 1080p is typically sufficient. For print, you need higher resolution -- at least 300 DPI at your final print size. AI models generate at different native resolutions.

Choosing the Right Resolution

Social media posts: 1080x1080 or 1080x1920. Website hero images: 1920x1080. Print materials: generate the highest resolution available and upscale if needed. NanoBanana AI supports multiple output sizes across all models.

Start generating images at the perfect resolution today.

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