To stop ChatGPT LinkedIn posts sounding like AI, give it your own notes and three of your past posts, forbid invented figures and stories, ban the common tells such as cliche openers, lists of three, hashtags and closing questions, then read the draft aloud and check every figure before posting.
Why ChatGPT drafts sound like ChatGPT
Asked for "a LinkedIn post about X", a general assistant writes the most typical LinkedIn post about X. It fills gaps with plausible statistics and short stories, and settles into an even rhythm. The fix is to give it your material and your rules, then check what comes back.
A prompt that removes the usual tells
Copy this and replace the brackets:
Write a LinkedIn post from my notes below. Rules: use only facts in my notes; do not invent figures, stories, quotes or results; no opening line about the state of the world; vary sentence length, including at least one sentence of four words or fewer; no lists of three; no hashtags; do not end with a question to the reader; no em dashes. Match the rhythm of my three example posts below. Notes: [your notes]. Example posts: [paste three of your posts].
What to do with the draft
- Read it aloud and strike every sentence you would not say.
- Check that every figure came from your notes.
- Delete any story you did not supply.
- Paste it into a checker to catch what you missed.
Where ChatGPT on its own runs out
A chat window does not remember your product, buyer or voice between sessions unless you set up a project or custom instructions, and it does not check its own draft against facts you saved. Tools such as Klype AI keep that context and run the check for you, including on drafts you wrote in ChatGPT.
Common questions
How do I make ChatGPT LinkedIn posts not sound like AI?
Give it your own notes and three of your posts, tell it not to invent figures or stories, ban the common tells (cliche openers, lists of three, closing questions, hashtags), then read the draft aloud and check every figure before posting.
What is a good ChatGPT prompt for LinkedIn posts?
One that supplies your notes and example posts and sets rules: only use facts from the notes, no invented stories, vary sentence length, no lists of three, no hashtags and no closing question to the reader.
Can I check a ChatGPT draft before posting?
Yes. Paste it into the free checker at klype.ai/check, or into Klype's Check to compare it with your own measured voice and saved facts.