Nano Banana Pro (by Google)

Overview

Google's most powerful image model with premium 4K generation and multi-image composition capabilities.

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Quick facts

• Modes: Text → Image · Image → Image (editing) · Images → Image (multi-image blend)

• Default output / size: 1024×1024 (1:1)

• Aspect ratios: 21:9, 16:9, 5:4, 4:3, 3:2, 1:1, 2:3, 3:4, 4:5, 9:16

• Resolutions: 1K, 2K, 4K

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What it's great for

• Premium quality image generation at up to 4K resolution.

• Professional multi-image composition (up to 14 input images).

• Highest fidelity outputs for commercial and professional use.

• Complex editing and inpainting tasks.

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Parameters

Control	Type	Default	Notes
Prompt	Text	—	Natural-language instruction (required)
Aspect Ratio	Dropdown	1:1	21:9, 16:9, 5:4, 4:3, 3:2, 1:1, 2:3, 3:4, 4:5, 9:16
Resolution	Dropdown	1K	1K, 2K, 4K (4K costs 2x)
Image	Upload	—	Required for editing modes

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Modes

Mode	Estimated time	Required inputs	Typical use
Text → Image	~30s	Prompt	Premium quality generation
Image → Image	~35s	Image, Prompt	High-fidelity editing
Images → Image	~40s	Multiple Images, Prompt	Multi-image composition

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Output options

Option	Values / notes
Aspect ratio	21:9, 16:9, 5:4, 4:3, 3:2, 1:1, 2:3, 3:4, 4:5, 9:16
Resolution	1K, 2K, 4K

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Prompt tips

• Model excels at photorealistic and artistic outputs.

• Use 4K resolution for maximum detail in final assets.

• Multi-image mode supports up to 14 input images for complex compositions.

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Safety

Text moderation is applied according to Google's usage policies.

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