The authors propose a visual-illusion CAPTCHA that confused GPT-4o and Gemini in all 30 tests while 20 of 23 humans passed on the first try, though the evaluation is narrow and non-adaptive.
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IllusionCAPTCHA: A CAPTCHA based on Visual Illusion
The authors propose a visual-illusion CAPTCHA that confused GPT-4o and Gemini in all 30 tests while 20 of 23 humans passed on the first try, though the evaluation is narrow and non-adaptive.