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

mixfont.com

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

#51

Post by Razengan »

heh although this font can be read by AI as other comments say, it gave me an idea:

How about writing or drawing stuff using optical illusions?

Shapes that not even human eyes can see, but the brain hallucinates: Shapes that seem to appear when you look straight at a pattern, or for a second after you look away from a pattern, or after you close your eyes, etc.

If you take a screenshot or a photo the image would just contain the same static pattern.

i.e. qualia-based "cryptography" :)

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

#54

Post by ozgung »

picture wrote: post #44
dhruvkb wrote: post #22

Claude Opus 4.8 can read it with a single prompt and no instructions on how to read it. https://ibb.co/WWMSXQkQ

Is the answer correct? I don't seem to see any demo video with "this is a ghost font" encoded

It is actually correct but not in the intended way. Delete all the sample text. If you look at your screen from a distance you'll see a subtle ghost like text on the noise pattern. It says "this is a ghost font".

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

#56

Post by xlii »

throw310822 wrote: post #48
xlii wrote: post #28

Technically it's not a font, because font needs to be still. Analogy: if I took photo after book was closed would we say that font cannot be read by a camera? Took a picture (only a single frame) and a 1s movie and threw it toward GPT 5.6 Sol (High): Frame took 9m30s to decyper and GPT 5.6, it returned: WRITTEN IN GHOST FONT. Weird because I can only see "GHOST FONT" on the demo... but extracted data from image (I sa…

> it returned: WRITTEN IN GHOST FONT It's a static decoy message independent from what you type in. You can see it if you take a long exposure pic of the screen (e.g. with your smartphone).

Oh, cool I was wondering how can I get to see that decoy!

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

#57

Post by senfiaj »

arianvanp wrote: post #41
senfiaj wrote: post #29

No, it can https://chatgpt.com/share/6a521e9b-c754-83ed-9d8e-cf653894eb...

That is not the message. Did you read the article.

I downloaded the message video, renamed it to test.mp4

Still could read https://chatgpt.com/share/6a5221f0-e3fc-83eb-bc15-74420002b6...

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

#58

Post by singularity2001 »

stabbles wrote: post #40
nextaccountic wrote: post #23

Earlier quoted context omitted.

> 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.

Exactly. It's a good idea, badly executed.

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

#59

Post by plastic-enjoyer »

ssl-3 wrote: 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

> I posted a screenshot of static white noise to AI

HackerNews never disappoints

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