Telling AI to "sound natural" rarely fixes generic writing. Natural to whom?
If you want a draft to sound like you, the AI needs more than a list of adjectives. It needs examples of your real writing, a clear purpose and permission to keep the rough edges that make the voice recognisable.
Which reference helps most?
A personal message for a formal report
The audience and purpose are too different.
Two reports you wrote for the same audience
A strong style reference if private facts are removed.
An AI draft you did not edit
It shows the AI's style, not necessarily yours.
Choose examples that match the job
A friendly message to a colleague is not the right reference for a formal report. A website article will not show how you write an email asking someone to act.
Choose two or three examples with a similar audience and purpose. They should be your own writing, not text that another AI produced for you.
Remove private information and old facts. The examples are there to show style, not provide content for the new piece.
Show choices, not a personality label
"Professional but friendly" could describe thousands of writers.
Examples reveal useful choices: how quickly you reach the point, how long your paragraphs are, whether you use questions, how direct your requests feel and how you explain uncertainty.
Ask the AI to identify those choices before drafting. Check the description. If it misses what matters, correct it.
Tell it what must stay unchanged
Style work should not alter facts, dates, names, links or required wording.
Use this prompt:
Use the supplied examples only as writing-style references. Identify the sentence length, directness, paragraph rhythm, level of formality and way I explain decisions. Then draft [output] for [audience and purpose]. Preserve all supplied facts. Do not copy phrases from the examples, invent a personal story or make the writing more promotional. Use plain UK English. After drafting, list any fact that needs checking.
Edit the first draft yourself
Your corrections teach you what the next prompt needs.
Notice repeated problems. Perhaps the AI uses too many headings, adds a glossy conclusion or removes a firm opinion. Record those patterns as short rules. Keep the rules specific to your writing.
"Avoid AI slop" is a useful aim, but it does not tell the tool what to change. "Do not use manufactured hooks, rule-of-three lists or a conclusion that repeats the opening" gives it something to apply.
Build a small writing pack
Keep the examples and rules together. Review them when your writing changes or when a new type of work needs a different voice.
Include:
- Two or three suitable examples.
- Words and phrases you avoid.
- Formatting rules.
- A note about the audience.
- One short description of what good writing should achieve.
Retire examples that no longer sound like you. A style pack should be maintained, not treated as a permanent portrait.
Do not remove every human edge
Perfectly balanced sentences and faultless transitions can make writing less believable. Your voice may include a blunt sentence, a dry observation or a repeated word chosen because it is clearer.
The aim is not to add mistakes. It is to stop the editing process sanding away every sign that a person made a choice.
Nova 9 view
Do not ask AI to guess your voice from five adjectives.
Give it a few relevant examples, protect the facts and keep a short record of the changes you repeatedly make. That record is often more valuable than another large prompt.
Sources and last checked
- OpenAI, Custom Instructions for ChatGPT: https://help.openai.com/en/articles/8096356-custom-instructions-for-chatgpt
- Anthropic, Personalisation features: https://support.anthropic.com/en/articles/10185728-understanding-claude-s-personalization-features
- Last checked: 14 September 2026


