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humanizer is a free doc that makes Claude write like a human

Jack Roberts6 September 2026Watch on YouTube

What you'll learn

  • How humanizer helps Claude write without AI-typical patterns like em-dashes and three-item lists
  • That the document is built on Wikipedia's list of AI writing tells to catch concrete mistakes
  • Why simply asking AI to 'sound human' does not work without a specific list of patterns
  • That text is passed over twice, once to rewrite and once to make sure it did not invent anything
  • That humanizer is free to use through a single document on GitHub

Frequently asked questions

Where can I find humanizer and is it free?
Humanizer is a free document and is available on GitHub at github.com/blader/humanizer.
What does the document that humanizer gives to Claude contain?
humanizer is built on Wikipedia's list of AI writing tells, so it catches the specific patterns that reveal AI writing, such as em-dashes and three-item lists.
Why does asking AI to 'sound human' not work?
Without a concrete list, the AI does not know what it is doing wrong. humanizer gives the AI the actual list of patterns to correct.
How does humanizer make sure nothing gets invented?
humanizer passes over the text twice, once to rewrite it and then again to check that it did not invent any content.

Topics

humanizerclaudeai-writinggithubprompt-engineering

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Description from the channel

Humanizer: https://github.com/blader/humanizer People can spot AI writing in one line. They just can't always explain how. It's the same tells every time. Em-dashes everywhere. Three-item lists. "It's not just X, it's Y." Words nobody says out loud. Telling AI to "sound human" does nothing. It doesn't know what it's doing wrong. humanizer gives it the actual list. One document. Free. Built off Wikipedia's list of AI writing tells. So it's catching the specific patterns. And it passes over your text twice. Once to rewrite it. Once to check it didn't invent anything. Like an editor with a proofreader behind them. Nothing slips through on either pass. Your writing stops announcing itself. #humanizer #claude #aiwriting #copywriting #github