GPT Image 1.5 (by OpenAI)

Overview

High-fidelity image generation with strong prompt adherence and transparent background support.

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Quick facts

• Modes: Text → Image · Image → Image (editing)

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

• Aspect ratios: 3:2, 1:1, 2:3

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What it's great for

• Premium quality image generation with precise control.

• Images with transparent backgrounds for design assets.

• Strong prompt adherence for detailed specifications.

• High-fidelity outputs for professional use cases.

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Parameters

Control	Type	Default	Notes
Prompt	Text	—	Natural-language instruction (required)
Aspect Ratio	Dropdown	1:1	3:2, 1:1, 2:3
Quality	Dropdown	High	Low, Medium, High
Background	Dropdown	Auto	Auto, Transparent, Opaque

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Modes

Mode	Estimated time	Required inputs	Typical use
Text → Image	~30s	Prompt	High-fidelity generation
Image → Image	~35s	Image, Prompt	Editing with strong fidelity

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Output options

Option	Values / notes
Aspect ratio	3:2, 1:1, 2:3
Background	Auto, Transparent, Opaque

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Prompt tips

• Specify composition, lighting, and desired ratio for best results.

• Use "Transparent" background for design assets and icons.

• Model excels at following detailed, specific prompts.

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