ChatGPT sounds generic because it knows nothing about you. Give it what a good ghostwriter would collect first: how you talk, the words you use and avoid, your stories, your opinions and who you are writing for. Put all of that into one voice guide, save it where the AI reads it every time, feed it real examples of your writing, and edit every draft before it goes out.
Why do AI posts all sound the same?
Ask ChatGPT for "a LinkedIn post about leadership" and you get the average of every leadership post it has ever read. Short dramatic lines, a neat lesson, a question at the end. It is fluent and forgettable, and readers spot it within a sentence.
The tool can write well. The trouble is that you gave it a topic and nothing else. With no idea of who you are, it falls back on the most common way of saying things. The fix is to stop asking it to write from nothing and start giving it you.
What goes into a voice guide?
A voice guide is a short document that describes how you write and what you write about. It is the single most useful thing you can give an AI. A good one covers four things.
- Tone. How you come across. Direct or gentle, formal or casual, funny or serious. Describe it with examples, not adjectives alone.
- Phrases. Words and expressions you actually use, and ones you never would. The "never" list matters as much as the "always" list.
- Stories. The real experiences you draw on: how you started, mistakes, clients, turning points.
- Opinions. What you believe about your industry, and where you disagree with the usual advice.
Add one more section on positioning: who you write for, what you help them with and what you stand for. Without it, the AI writes for everyone, which means it writes for no one in particular.
How do you capture your voice if you don't write much?
Talk instead. Most people sound more like themselves when they speak than when they write. A few ways to collect your voice:
- Record yourself answering questions about your work, then turn the recording into text.
- Gather emails and messages you have written to clients and colleagues. They are often closer to your real voice than anything you wrote for an audience.
- Save a few posts by other people that you wish you had written, and note what you like about them.
Then read it all back and pull out the patterns: phrases you repeat, how long your sentences are, how you open and close a point. That becomes your voice guide.
This is how Voice OS works too. The voice guide is built from interviews with you, not from a form you fill in.
Why does the AI need your stories and opinions?
Because it cannot make them up, and it should not try. An AI that is short of material will invent an anecdote or borrow a generic opinion, and that is exactly what makes posts feel fake. Worse, an invented story under your name can damage trust.
Keep a story bank: a list of real stories, each with a few lines on what happened and what you learned. Keep a list of your opinions next to it. When you ask for a post, point the AI at one story or one opinion, and it has something true to work with.
How do you set it up in ChatGPT or Claude?
Put your voice guide where the AI reads it every time, so you are not pasting it into each chat. Both ChatGPT and Claude let you save standing instructions or files for a project. Check the current help pages of whichever tool you use, because the names and menus change often.
Then ask for posts in a consistent way. A useful request includes:
- the story or opinion the post is about
- who it is for
- the one point the reader should take away
- any limits, such as length, or "no questions at the end"
Ask for two or three versions, pick the closest and work from that. Over time, add your best finished posts to the guide as examples. Nothing teaches the AI your voice faster than your own approved writing.
How much editing will it still need?
Some, always. Read every draft aloud. Cut anything you would not say to a client's face, and any phrase that sounds like an advert. Check every fact, number and name, because AI can get them wrong with total confidence.
A good setup means you start from a draft that already sounds close to you, instead of a blank page. You are still in the process, and you should be. The point is that the post is still yours.
What if you sell to architects?
If you are a maker who sells through architects, the same rules apply, with one addition: write about real jobs, details and problems you solved, because that is what architects read for. What a bespoke maker should post on LinkedIn covers the five kinds of post that work, and How to get specified by architects explains the bigger picture.
If you would rather not write at all, Forge Lead runs LinkedIn for makers, in their own name.
Want this built for you?
Voice OS builds the whole setup with you: a voice guide built from interviews with you, a bank of your stories and opinions, and your positioning, ready to use with ChatGPT or Claude. It is for founders, experts and business owners who want to post on LinkedIn in their own voice, without hiring a ghostwriter. See Voice OS on our home page, or ask about Voice OS on a short call.