Game Asset - Glass Marble on Wet Slate
A simple yet effective test prompt for comparing realism across multiple image generation models.
Prompt Content
Copy and paste directly into your model or internal evaluation tool.
a {argument name="subject" default="green glass marble"} on {argument name="surface" default="wet black slate"}
Use Cases
Example outputs
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Reference Output
Gallery: https://youmind.com/en-US/nano-banana-pro-prompts?id=32919 Author: Perspective AI Original source: Twitter Post
Scoring Rubric
Check whether the image follows the subject, composition, style, aspect ratio, text, and negative constraints; prioritize the visual details explicitly listed in the prompt.
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