Live data from Hacker News

Ghost Font: A font that humans can read but AI cannot

mixfont.com

31–40 of 188 posts

Re: Ghost Font: A font that humans can read but AI cannot

#31
post #19
post #16

I pasted a screenshot of the default text ("GHOST FONT") into ChatGPT 5.6 Sol, told it to read it, and without further instruction it chewed on it for awhile before coming back with: WHAT HAPPENS IN VEGAS STAYS IN VEGAS

What did you expect from a screenshot of obvious noise? The only thing that makes the text readable is the motion. EDIT: On second look, the static screenshot does say "WRITTEN IN GHOST FONT".

[deleted]

Re: Ghost Font: A font that humans can read but AI cannot

#35

Took me a long time to realise that "Written In Ghost Text" wasn't actually the text I was meant to be reading, and that was only the decoy message. I can barely read the actual message, and it's about as "readable" to me as the Magic Eye 3D pictures. Actually I think I have a headache from looking at it on a mobile screen. As a research idea it's cool though. But I do wonder if/when AI models will figure out how to…

Funny, for me it is exactly the opposite: I can read the actual text very easily, but the “Written in Ghost Text” is barely perceptible to the point I would have completely missed it, if it were not for the comment pointing it out here.

Re: Ghost Font: A font that humans can read but AI cannot

#38
post #8

uuh, what's the point? i mean, models will just be trained to understand it

Why would they be trained to read a research experiment that fundamentally goes against the way they perceive? They can't train on this technique, they can only postprocess it into a form they can perceive.

Re: Ghost Font: A font that humans can read but AI cannot

#40
post #16

I pasted a screenshot of the default text ("GHOST FONT") into ChatGPT 5.6 Sol, told it to read it, and without further instruction it chewed on it for awhile before coming back with: WHAT HAPPENS IN VEGAS STAYS IN VEGAS

> a screenshot The text is a video. Every frame contain random dots, so an individual frame by itself doesn't contain the intended message This "font" exploits the fact that current-gen frontier models will process video one frame at time, but each frame is noise, so by looking at frames in isolation doesn't reveal anything Then, they add a hidden message to each frame just so that the agent report something and stop…

If you take a frame you see it's neither random nor dots:

https://i.imgur.com/CgtyGjl.png

From a single frame you can definitely identify boundaries because the dots are sliding and get truncated.

Post reply on HN