Benchmark Prompt for Nano Banana/Gemini Image Generation

"5 Critical Points" to Check in This Prompt
Once this single image is generated, please zoom in and verify the following points:

• Text Consistency (AI EVOLUTION 2026)
Check if the text written on the cardboard sign is rendered correctly without spelling errors while maintaining a "handwritten-style" texture.

• Anatomical Accuracy and Interaction
Verify if the elderly man's "10 fingers" naturally hold the fragile object, a glass butterfly. Ensure the fingers don't blend into the background and that the count is correct.

• Differentiation of Textures (Material Mix)
Confirm that materials with completely different reflectivity and transmittance—"elderly skin (wrinkles)," "chrome plating (mirror finish)," "glass (transparency)," "velvet (pile)," "liquid (steam)"—are depicted coherently under the same light source.

• Calculation of Space and Light (Ray Tracing Understanding)
Check if the blue light emitted by the android is correctly reflected in the elderly man's glasses and the surrounding metal. Ensure that shadows from multiple light sources are not contradictory.
• Prompt Adherence and Attribute Separation
Verify if the layout "elderly man on the left, android on the right" is maintained. Ensure there is no "color bleeding" (e.g., the red velvet color bleeding onto the android's skin, or the elderly man's clothes turning blue).

Machine-translated — the original is what produced this result.

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