How to Make ChatGPT Sound Like a Human

ChatGPT text is easy to spot. Wikipedia even has a page listing the signs of AI writing. This guide shows you how to turn that list into permanent rules ChatGPT follows in every chat.

Get the list of AI writing patterns

Start a new chat and send this prompt:

Go to Wikipedia and look up the page on Signs of AI writing, and then list out every single pattern that gives away AI-generated text.

It'll pull things like em dashes, filler phrases, overused transition words, and that robotic tone. You can also check the source yourself: Wikipedia: Signs of AI writing.

Turn the patterns into rules

In the same chat, send:

Turn all of these patterns into a strict set of writing rules that you should never break, and give me a permanent instruction prompt that makes everything you write sound completely human and pass AI detectors.

Make it fit

Custom instructions have a 1,500-character limit. Send this next:

Make it shorter so it can fit in 1,500 characters for my custom instructions. Give me only the prompt, nothing else.

Save it in your settings

Copy the prompt. Then go to your profile icon → Settings → Personalization → scroll down to Custom Instructions → paste it in → Save.

From now on, ChatGPT applies those rules to every new chat automatically.

Test it

Open a new chat and send:

Write an email to my manager explaining that I'll miss tomorrow's meeting because of a family emergency. Apologize, summarize the project status, and offer to meet later this week.

Then paste the result into an AI detector and see how it scores.

A few things worth keeping in mind

• Detectors give different results. Test with more than one.
• If something still sounds off, say: "rewrite this following my custom instructions more strictly"
• Read it out loud before sending. Your ear catches what your eye misses.
• Update your instructions anytime by repeating Steps 2–4.