Unicode in AI texts: the invisible crumb trail of ChatGPT?

In this blog, I explain exactly what unicode is, why it occurs in AI texts, when it's smart to remove it AND how you can easily do it yourself.

Wat is unicode? 

Unicode is an international standard that ensures text is displayed correctly everywhere. Letters, symbols, emojis and punctuation are all given a unique code. This makes a text look the same on every computer, so Unicode is not a bug and certainly not spam. It is simply a way to make text technically work well.

Waarom ChatGPT unicode toevoegt 

When ChatGPT generates a text, it sometimes adds invisible unicode characters. Think of special spaces or subtle markings that help structure a text. You won't see them in Word or in your CMS, but they are in the source code. For Google, that's not a problem. It's recognizable and normal code.

Unicode as a crumb trail of AI

While unicode by itself is nothing suspicious, it can be a crumb trail of AI usage. Certain invisible characters are more common in AI output than in manually written text. That doesn't mean your text will automatically be considered AI, but it may be an additional clue for someone who is consciously looking for this.

Is unicode a risk to Google?

For SEO, you need not fear. Google can handle unicode just fine and does not see it as a negative factor. So it's not a red flag and not a ranking problem. The search engine just recognizes these characters as part of normal text structure. But if you still want to be on the safe side, you can choose to remove it.

When it makes sense to remove unicode

So there are situations where you still want to be on the safe side - for example, when you don't want anyone to be able to see that AI has been used, or when you want full control over your content. When copying texts to different systems, invisible code can also sometimes cause minor technical irritations, so cleaning up is a safe choice either way.

Here's how to check and remove unicode in your text

If you want to know if your text contains invisible characters, you can easily and best test it with an online tool. An example is Originality.ai's Invisible Text Detector. There you can turn on the "Show Unicode" option to make hidden characters visible. With one click, you can then remove them. There are many other such tools.

Here you see highlighted in green below the unicode. Press fix all, to remove all unicode from your content 

How seriously should you take this?

Unicode is not evidence of AI usage. A human text can also contain unicode. So it is not a decisive signal. Think of it as one small puzzle piece in a bigger picture. When combined with other features, it can be a clue, but on its own it says little, but the consistency with which ChatGPT, for example, adds it makes it useful to think about it consciously.

Need help optimizing your AI content for SEO? 

Want to make sure your AI texts are free of invisible unicode and perform optimally in Google? We'll help you clean up your content, improve your SEO and strategically deploy AI so you rank better structurally. Wondering where your website stands now? Do our free SEO scan and find out immediately what opportunities for improvement exist.