Decoy Font

Decoy Font Decoy Font 是一款 TTF 字体，旨在防止 AI 读取你的输入内容。你可以输入一段文字，其中每个字母都包含一个“诱饵”信息。

What is Decoy Font? Decoy font is a font that prints a decoy for every letter, making it more difficult for AI to read what you type. The font works by using separate spatial frequencies to communicate two different letters in the same space. The foreground contains thin outlines, while the background is a low-frequency mass that is blurred. When overlaid on top of each other, what you see depends on how you look at the letter. If you’re having a hard time seeing the hidden message, move your screen farther away, or try squinting to see it.

什么是 Decoy Font？ Decoy Font 是一种为每个字母打印“诱饵”的字体，使得 AI 更难读取你输入的内容。该字体通过利用不同的空间频率，在同一空间内传达两个不同的字母。前景包含细轮廓，而背景则是模糊的低频块。当两者叠加时，你所看到的内容取决于你观察字母的方式。如果你难以看清隐藏信息，请将屏幕移远一点，或者尝试眯起眼睛观察。

Decoy font says two different things from up close vs far away Most AI systems work by reading the pixels of an image up close. So when this type of image is pasted into an AI model like ChatGPT, even when the text is small, the LLM focuses on the foreground text because that is what is most clearly outlined. However, from a slightly zoomed out distance, the text reads the actual hidden message. This simple illusion is enough to trick even more advanced LLMs like GPT-4o and Gemini 1.5 Pro.

Decoy Font 在近距离和远距离下呈现不同内容 大多数 AI 系统通过近距离读取图像像素来工作。因此，当这种图像被粘贴到像 ChatGPT 这样的 AI 模型中时，即使文字很小，大语言模型（LLM）也会聚焦于前景文字，因为那是轮廓最清晰的部分。然而，从稍微缩小的距离看，文字呈现的则是实际的隐藏信息。这种简单的错觉足以欺骗像 GPT-4o 和 Gemini 1.5 Pro 这样先进的大语言模型。

Decoy Font also exists as an actual TTF font file that can be installed and used to write complete text. You can download and install the TTF font file here. The following paragraph is written in Decoy Font - you can actually copy the text and paste it into your own notepad.

Decoy Font 也提供可安装的 TTF 字体文件，可用于编写完整文本。 你可以在此处下载并安装 TTF 字体文件。以下段落就是用 Decoy Font 编写的——你甚至可以复制这段文字并粘贴到你自己的记事本中。

Decoy Font is constructed based on the technique behind hybrid images. This technique has been well studied for many existing optical illusions. One of the most famous is the image of Albert Einstein and Marilyn Monroe mixed together. Decoy Font applies this same idea to typography as a way to protect the words that you are typing from AI or OCR techniques.

Decoy Font 基于混合图像（Hybrid Images）背后的技术构建。 这种技术在许多现有的视觉错觉中已被深入研究。最著名的例子之一是阿尔伯特·爱因斯坦和玛丽莲·梦露的混合图像。Decoy Font 将这一理念应用于排版，旨在保护你输入的文字免受 AI 或 OCR（光学字符识别）技术的抓取。

Anti-AI Fonts As AI becomes more and more capable at reading text online, there’s been a rising interest in protecting information and IP from it. Anti-AI fonts can help with obscuring text in images and ensuring that messages that are meant for humans are only read by other humans.

反 AI 字体 随着 AI 在读取在线文本方面的能力越来越强，人们对保护信息和知识产权免受其侵害的兴趣日益浓厚。反 AI 字体有助于模糊图像中的文本，确保那些旨在传达给人类的信息只能被人类阅读。

Decoy Font is an interesting way to obscure messages, but it’s not a guarantee. Models with powerful agents and coding abilities may be able to see past the initial lettering, and of course with some basic prompting, certain agents should know to look for the hidden letters. However, Decoy Font still serves as an initial point of confusion for AI, which can make it very effective at deterring scraping or casual observation.

Decoy Font 是一种有趣的隐藏信息方式，但它并非万无一失。 具备强大智能体和编码能力的模型或许能够看穿初始字母，当然，通过一些基本的提示词（Prompting），某些智能体也能够学会寻找隐藏的字母。然而，Decoy Font 仍然能为 AI 设置最初的干扰点，这使其在阻止抓取或随意观察方面非常有效。

What’s next? If you’re interested in exploring Decoy Font further, you can download the TTF font file and use it in your own projects. It would be interesting to see how this could be applied to technologies like CAPTCHA, or just simpler things like sending private messages between friends.

未来展望 如果你有兴趣进一步探索 Decoy Font，可以下载 TTF 字体文件并在自己的项目中使用。看看这种技术如何应用于验证码（CAPTCHA）等技术，或者仅仅是用于朋友间发送私密信息，将会是一件很有趣的事情。

I believe that character-based languages like Chinese would potentially benefit even more from this technique. The characters are all roughly the same size and shape, which would make it easier to hide a hidden message. At Mixfont, I’m building a frontier AI font generator and I’m always interested to explore new ways that typography and AI intersect. I would love to hear your ideas on Decoy Font and how it can be improved. You can find me on X at @ericlu.

我相信像中文这样的表意文字语言，可能会从这项技术中获益更多。 汉字的大小和形状大致相同，这使得隐藏信息变得更加容易。在 Mixfont，我正在构建一个前沿的 AI 字体生成器，并始终对探索排版与 AI 的交叉点充满兴趣。我很乐意听到你对 Decoy Font 的想法以及如何改进它的建议。你可以在 X 上通过 @ericlu 找到我。