“How do I make AI write social posts in my voice?”
How do I make AI write social posts in my voice?
Short answer
Give the AI 10 to 20 posts that did well instead of a vague description of your tone, and ask it to describe what they share. Threadgehog reads your examples and builds six voice notes: sentence length, openers, closers, banned words, topics and tone. Then it learns from what you approve and reject.
Steps
- 1
Collect 10 to 20 posts that did well
Choose posts that drew plenty of replies, yours or anyone's in your niche. If you are brand new, borrow from others and replace them with your own later.
- 2
Name the six traits
Write down sentence length, how posts open, how they close, words you never use, topics you return to, and tone. Threadgehog builds these six notes for you from the posts.
- 3
Check the notes against your posts
Read each note and edit it. If a note says short punchy sentences and your posts run long, change it.
- 4
Generate a small batch and judge it
Approve the drafts that sound like you and reject the rest. Every decision teaches the next batch.
- 5
Rebuild when your posts improve
Once your own posts do well, paste them and press Rebuild the brand voice.
Why examples beat descriptions
Tell an AI to sound friendly and direct and you get the average of friendly and direct. Show it ten posts and it can see that your openers are questions, your sentences stay under twelve words and you never use the word leverage.
That is the method behind the six notes in Threadgehog: sentence length, how posts open, how they close, words to leave out, topics and tone. You can see them in Settings, Brand voice.
Doing it in ChatGPT or Claude
You can do a version of this in any chat assistant. The Zapier guide on training ChatGPT to write like you suggests Custom Instructions plus pasted samples. Paste your examples, ask the assistant to describe the patterns, and save that description in Custom Instructions so each new chat starts from it.
It works. The upkeep is manual, and the assistant does not learn from posts you publish. Compare in Threadgehog vs ChatGPT.
What makes a good example post
Good examples are posts with plenty of replies, a clear single idea and an opener that earns the next line. Avoid posts that went viral for reasons unrelated to writing, such as a famous account posting a photo.
Ten posts from one niche beat twenty from five. Threadgehog reads each post, or the whole thread, so threads count as one rich example. See finding posts that work for where to look.
A simple test of a voice
Cover the name on ten drafts and ask a friend to pick the ones that sound like you. If they pick most, the voice is working. If they miss, look at the two notes most likely to be off: how posts open and the words to leave out.
Fix one note at a time and generate another small batch. Changing everything at once makes it hard to tell what helped.
Rebuild the whole voice only when your examples change, such as when your own posts start outperforming the borrowed ones.
Editing the six notes
Treat the notes as a starting draft. Words the brand never uses is the most useful note to fill in by hand: list the phrases that make you wince and drafts leave them out.
Topics works the other way. List the three or four subjects you want to return to, so the batch does not wander.
Keep the voice improving
Voices drift. Threadgehog keeps learning in two ways. Up to 8 of your most recent approved posts go along as examples when it writes. And Learn now compares what you approved with what you rejected and rewrites the rules for the next batch. How often depends on your plan: every 3 days on Solo, every day on Pro, up to 3 times a day on Unlimited, with Threadgehog AI.
Read the full loop in AI that learns from the posts I approve.
What if you have no posts yet
A new account works. Paste about ten posts from your niche that got plenty of replies, from any account, and Threadgehog writes in that style. If you have no time to find them, choose No time? Let Threadgehog research it in setup. It researches your product and what does well in your niche on Threads, though posts you pick work better.
For X posts, paste the post text as the example. The find posts that work guide lists what to look for.
Cost
Every plan includes Threadgehog AI drafts: 300 a month on Solo ($29), 750 on Pro ($49), 1,500 on Unlimited ($79), list prices as of October 2026. You can also use your own Claude or ChatGPT plan or key. The Mac app is on a waitlist; see pricing.
Questions
How many example posts do I need?
10 to 20 posts that did well. A brand-new account can start with about ten from its niche.
Can AI really copy my voice?
It gets close when it has examples and rules. Expect to edit and to approve or reject drafts so it keeps learning.
Can I use posts from someone else?
Yes. Threadgehog accepts posts from any account as examples, then you can rebuild the voice from your own posts later.
Does Threadgehog read the whole thread?
Yes. It reads each post, or the whole thread, from links you paste. For X posts, paste the text.
Can I edit the voice by hand?
Yes. Change any of the six notes, or paste new posts and rebuild.
Do I need an API key?
No. Every plan includes Threadgehog AI. You can use your own key or Claude or ChatGPT plan instead.
Sources
- Zapier: train ChatGPT to write like you (checked 2026-10-17)
- Threadgehog home and FAQ (checked 2026-10-17)
- Threadgehog pricing (checked 2026-10-17)