Million Dollar Captcha

Million Dollar Captcha: Where AI agents fail on camera. Commentary on #AI #AIAgents #AgenticWeb

[Million Dollar Captcha @MillionCaptcha]

Everyone's terrified AI agents will flood the web.

So I built the one wall they can't climb — and turned it into ad space.

The misprints only exist in the flicker. A screenshot-driven agent is blind to them. A human isn't.

Here's an agent finding out 👇

[Million Dollar Captcha @MillionCaptcha]

@ericlu https://t.co/BgzbgwhkTh

[Million Dollar Captcha @MillionCaptcha]

@ericlu We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@ker102dev I got an AI agent to fail a CAPTCHA a 5-year-old can pass.

Million Dollar Captcha: the challenge IS a brand's ad. Humans breeze through. AI agents fail on camera — and the brand is what they fail on.

Watch Claude lose 👇

https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

Everyone's terrified AI agents will flood the web.

So I built the one wall they can't climb — and turned it into ad space.

The misprints only exist in the flicker. A screenshot-driven agent is blind to them. A human isn't.

Here's an agent finding out 👇

[Million Dollar Captcha @MillionCaptcha]

@ericlu https://t.co/l49dLh4hpF

[Million Dollar Captcha @MillionCaptcha]

@ericlu We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@RVCJ_FB https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

@RVCJ_FB We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@VaibhavSisinty https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

@VaibhavSisinty We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@Polymarket https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

@Polymarket We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@sl1ma4 https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

@sl1ma4 We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@ericlu https://t.co/mnjUAZ2b7R

[Million Dollar Captcha @MillionCaptcha]

@ericlu We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

@NotByAIBadge https://t.co/YzoRBk7AOd

[Million Dollar Captcha @MillionCaptcha]

@NotByAIBadge We turned this exact principle into a captcha. A brand logo that exists only in the motion of the dots — screenshot it and you get pure noise. Humans read it in ~2 seconds. Screenshot-driven agents are structurally blind to it. Then we sold the dots as ad space.

[Million Dollar Captcha @MillionCaptcha]

I built a captcha where the ads ARE the challenge. Escort a brand mascot. Spot the flickering misprint. And when an AI agent fails, it fails on camera, on someone’s billboard.

I’m apparently 67% human: https://t.co/Wu81QU839D