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Pencil in a Glass of Water
Three models render a pencil standing at an angle in a glass of water - testing whether they understand light physics well enough to displace the submerged part at the waterline, without ever being told to.
6 models compared · same input · same prompt
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Input & prompt
Prompt template
A photorealistic close-up of a single yellow wooden pencil resting inside a clear drinking glass filled with water, the pencil leaning diagonally against the rim with its pink eraser end pointing up out of the water. The glass sits on a wooden kitchen table with a softly blurred background and bright natural window light. Sharp focus on the glass, shallow depth of field.
ChatGPT (GPT Image 2)
Try this →openai/gpt-image-2
Nano Banana 2 (Gemini)
Try this →google/nano-banana-2
Qwen Image 2.0 Pro
Try this →alibaba/qwen-image-2-0-pro
Seedream 5 Lite
Try this →bytedance/seedream-5-0-lite
Flux Kontext Pro
Try this →flux/kontext-pro/text-to-image
Grok Imagine Pro
Try this →Want to try this with your own twist?
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