GPT Image 1.5
GPT Image 1.5 vs Stable Diffusion 3.5 Medium
Compare GPT Image 1.5 by OpenAI against Stable Diffusion 3.5 Medium by Stability AI, tested across 17 shared challenges. Updated February 2026.
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GPT Image 1.5vsStable Diffusion 3.5 Medium
17 challenges
Why GPT Image 1.5?
14 months newerDec 2025
Why Stable Diffusion 3.5 Medium?
No standout advantages
12 / 17
Hyperrealistic Portraitimage generation
Tests an AI's ability to generate a photorealistic human portrait
Stable Diffusion 3.5 Medium
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2 / 17
Futuristic Cityimage generation
Tests an AI's ability to create detailed architectural visualizations
GPT Image 1.5
Stable Diffusion 3.5 Medium
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3 / 17
Fantasy Character Designimage generation
Tests an AI's capability to design fantasy characters with specific details
GPT Image 1.5
Stable Diffusion 3.5 Medium
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4 / 17
Product Visualizationimage generation
Tests an AI's ability to create a marketing-ready product image
GPT Image 1.5
Stable Diffusion 3.5 Medium
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5 / 17
Illustrated Sceneimage generation
Tests an AI's ability to generate a stylized illustration
GPT Image 1.5
Stable Diffusion 3.5 Medium
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6 / 17
Corkboard Outfit Collageimage generation
Tests an AI's ability to create convincing mixed-media collages and product presentation
GPT Image 1.5
Stable Diffusion 3.5 Medium
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7 / 17
Architectural Blueprint Sheetimage generation
Tests an AI's ability to render technical drawings with clean linework, scale, and legible annotations
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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8 / 17
Fluid Dynamics Explainerimage generation
Tests an AI's ability to create a clear, diagrammatic scientific illustration with explanatory structure
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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9 / 17
Isometric Cutaway Homeimage generation
Tests spatial reasoning, perspective consistency, and detailed environment rendering
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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10 / 17
Packaging Shelf Mockupimage generation
Tests branding, packaging design, and photoreal retail context rendering
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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11 / 17
Botanical Scientific Plateimage generation
Tests fine detail, consistent linework, and vintage scientific illustration style
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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12 / 17
Imaginary Transit Mapimage generation
Tests graphic design, layout, and typography accuracy in a schematic map
GPT Image 1.5
No content available for this output.
Stable Diffusion 3.5 Medium
No content available for this output.
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12 of 17