July 11, 2026
Unread receipts for robots
A font that humans can read but AI cannot
The internet is split over a ‘human-only’ font that may just make everyone nauseous
TLDR: Ghost Font hides readable words inside moving dot videos, making screenshots useless and confusing some of today’s smartest AI tools. Commenters were intrigued but divided, with many arguing it’s either a clever anti-bot stunt or just the next annoying step in the endless human-vs-machine battle.
A new project called Ghost Font is being pitched like a tiny rebellion against the robot takeover: it hides words inside moving dots so people can read the message, but many AI tools struggle. Pause the video and the text vanishes into static. Take a screenshot and you get basically nothing. Add in a fake hidden message as bait, and suddenly this little art experiment turns into a full-on cat-and-mouse game with machines. Very spy movie, very "send this before the bots see it."
But the real fireworks were in the community reaction, where people instantly split into two camps: "cool experiment" and "this is just another annoying arms race." One commenter sighed that this feels like the same battle captchas started, warning that every attempt to block machines usually makes life worse for actual humans too. Another went even more blunt: if this ever becomes important, AI will just learn it, so what exactly is the point? Ouch.
And then came the comedy. One user basically gave the project a standing ovation for creativity while also saying reading more than two sentences would make them "throw up xD". That pretty much captures the vibe: fascinated, skeptical, and slightly motion-sick. Even the shortest comment — a deadpan "yet" — landed like a mic drop, because it summed up the whole thread’s mood: sure, AI can’t read it now... but for how long?
Key Points
- •Ghost Font is a prototype that encodes text through motion in video so humans can read it while static frames remain unreadable.
- •The article says leading AI models such as Claude Fable and GPT Sol 5.6 Ultra struggled to decode Ghost Font videos unless given the exact technique.
- •Ghost Font runs locally, allowing users to preview and download generated videos without sending message data to a server.
- •The article contrasts Ghost Font with Sang Mun's 2013 ZXX font, which targeted OCR software but is now described as easily readable by modern AI models.
- •The article states that Ghost Font is not fully secure against determined agents with local code execution and says encryption remains the only reliable way to truly hide messages.