# How to Make ChatGPT Sound Like You on LinkedIn: Posts, Comments, and Custom Instructions

> How to make ChatGPT sound like you on LinkedIn: custom instructions, a banned-word list, comment prompts, and why the voice keeps resetting every session.

URL: https://voicemoat.com/blog/make-chatgpt-sound-like-you-on-linkedin

## Key facts
- Published: 2026-07-30
- Category: AI and Voice
- Read time: 19 minutes
- Author: VoiceMoat team
- Publisher: VoiceMoat
- Topics: Making AI sound like you on LinkedIn; ChatGPT custom instructions for LinkedIn; AI-written LinkedIn posts and comments; AI voice matching for social media; Humanizing AI writing

## Key points
- To make ChatGPT sound like you on LinkedIn, paste a saved custom-instructions block (your role, three voice rules, and a banned-word list) into Settings > Personalization, then feed it three to five of your best posts as reference before every draft.
- A banned-word list (delve, tapestry, unlock, game-changer, em dashes) subtracts the corporate AI smell, but it does not add your actual voice, so posts still read as generic-but-clean.
- The voice resets every new session and every model. ChatGPT, Claude, Copilot, and Gemini each need their own re-pasted setup, and none of them remembers the edits you made last week.
- For comments, the prompt has to read the post you are replying to first, then answer in your voice with one specific reaction, not a summary; always run a 'would I actually say this?' edit pass before posting.
- VoiceMoat is an AI social media tool for Twitter and LinkedIn (create, schedule, engage, analyze, grow) whose writing partner audenAI learns your voice from your own LinkedIn posts once and applies it to every post draft and comment in one place. Disclosure: VoiceMoat is our product.

## Related articles
- Why Every AI LinkedIn Post Sounds the Same (and How to Break the Pattern): https://voicemoat.com/blog/why-ai-linkedin-posts-sound-the-same
- How to train AI to write in your voice: the cross-model guide: https://voicemoat.com/blog/how-to-train-ai-to-write-in-your-voice
- How to Make AI Writing Sound Human: The De-AI Playbook: https://voicemoat.com/blog/make-ai-writing-sound-human
- Why Your AI Tweets Sound Generic or Robotic (And How to Fix It): https://voicemoat.com/blog/why-ai-tweets-sound-generic
- Using AI for LinkedIn Engagement: Comments, Connections, and Cold DMs: https://voicemoat.com/blog/ai-linkedin-engagement-comments-connections-dms
- Is It Safe to Use AI on LinkedIn and X? Detection, Reach, and the Rules in 2026: https://voicemoat.com/blog/is-it-safe-to-use-ai-on-linkedin-and-x
- How to Make Claude Write in Your Voice for LinkedIn and Twitter: https://voicemoat.com/blog/make-claude-write-in-your-voice
- Claude vs ChatGPT for Writing Social Posts (LinkedIn and Twitter): https://voicemoat.com/blog/claude-vs-chatgpt-for-social-posts
- How to Use Gemini, Grok, and Copilot to Write Social Posts That Don't Sound Like AI: https://voicemoat.com/blog/gemini-grok-copilot-social-posts-not-ai
- Why every AI draft you write sounds the same: https://voicemoat.com/blog/why-ai-drafts-sound-the-same
- VoiceMoat vs ChatGPT in 2026: which AI wins for social media?: https://voicemoat.com/blog/voicemoat-vs-chatgpt-2026

## FAQ
Q: How do I make ChatGPT sound less like AI on LinkedIn?
A: Three moves. First, paste a banned-word list into your custom instructions (delve, tapestry, unlock, game-changer, the em dash) so the obvious tells never appear. Second, force one clear opinion per post instead of balanced hedging, because a point of view is the strongest human signal. Third, run a critique-then-rewrite prompt: have ChatGPT draft, name where it sounds generic, then fix it. The banned words remove the smell; the opinion and the specifics add the voice.

Q: What custom instructions make ChatGPT sound human on LinkedIn?
A: In Settings > Personalization, put your role, audience, and topics in the 'about me' box, and your voice rules plus banned words in the 'how to respond' box. The most useful lines: match my analyzed voice (short sentences, one-line paragraphs, my repeated phrases), take one opinion per post, use concrete specifics, no hashtags in the body, no emoji in the first line, and never use the banned-word list. Feed it three to five of your best posts as reference before drafting; the instructions format the voice, the reference posts supply it.

Q: How do I make Claude sound like me for LinkedIn?
A: Use a Claude Project. Drop three to five of your best LinkedIn posts plus your voice rules into the Project knowledge and custom instructions, and every chat in that Project starts with your voice loaded, which is closer to persistence than a bare chat. Ask Claude to analyze your posts first, then draft. The limit to know: it does not learn from the edits you make afterward, so you update the Project by hand as your voice evolves.

Q: Can Copilot write LinkedIn posts in my voice?
A: Partly. Microsoft Copilot leans on a small set of preset tones (professional, casual, and a few more) rather than a free-form voice you define, and it has the weakest per-session memory of the major assistants for a specific personal voice. You can paste your reference posts and ask it to match them, and it will approximate, but it keeps nudging everything back toward its presets. Copilot can write a competent post in a style; it is the hardest of the four to make sound specifically like you over time.

Q: Is there an AI to write LinkedIn comments in my voice?
A: Yes. In any assistant, paste the full post you are replying to and constrain the model to one specific reaction (add an example, push back on one point, or extend the idea), 1 to 3 sentences, no summary and no 'great post'. Always run a 'would I actually say this?' edit before posting. Purpose-built tools go further: VoiceMoat (our product) uses its writing partner audenAI to learn your voice from your own LinkedIn posts and draft comments in Engage in that voice, so you are not re-writing a prompt for every reply.

Q: Can I make AI sound like me on LinkedIn without rewriting a prompt every time?
A: You can get close with a saved custom-instructions block and a banned-word list, but those only strip the AI tells and reset with each model and session. If you want your voice added, not just the robot words subtracted, a purpose-built tool helps. VoiceMoat (our product) uses its writing partner, audenAI, to learn your voice from your own LinkedIn posts once and apply it to both posts and comments in one place. It is free to start, with paid plans from $35/mo.

Source: https://voicemoat.com/blog/make-chatgpt-sound-like-you-on-linkedin
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