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ChatGPT

How to Use AI to Write Emails, Essays and Posts That Sound Like You

AI writing tools such as ChatGPT, Gemini and Microsoft Copilot are best used as a writing partner, not a ghost writer. Give the tool your key points, audience and tone, ask for an outline or first draft, then rewrite it in your own words, check every fact, and proofread. Used this way, AI saves time while the finished piece still sounds like you.

Updated
Time
20 minutes
Difficulty
Easy
Applies to
Web, Windows, Mac, Android, iPhone

By Published Oct 8, 2026

Quick answer

  1. 1 Decide your goal, audience and key points before you open the AI tool.
  2. 2 Ask for an outline or a first draft, giving context, tone and length.
  3. 3 Share a sample of your own writing so it matches your style.
  4. 4 Edit the draft: cut generic phrases and add your own details.
  5. 5 Check every fact, name, date and figure.
  6. 6 Use AI to proofread the final version.
  7. 7 Follow your school’s or employer’s rules on AI use.
On this page
  1. Before you start
  2. Where AI helps most in writing
  3. Plan before you prompt
  4. Get a strong first draft
  5. Make the draft your own
  6. Polish and proofread with AI
  7. Troubleshooting
  8. Frequently asked questions

Before you start

  • An AI assistant: ChatGPT, Google Gemini, Microsoft Copilot or similar
  • Your notes or key points for the piece of writing

Where AI helps most in writing

AI is most useful at the stages of writing that slow people down:

  • Getting started: turning messy notes into an outline, or beating a blank page.
  • Rewriting: making text shorter, clearer, friendlier or more formal.
  • Tricky messages: complaints, apologies, refusals and follow-ups where tone matters.
  • Proofreading: catching grammar, spelling and awkward sentences.
  • Repurposing: turning a report into an email summary, or a blog post into social posts.

It is weakest at facts, personal stories and original opinions, which are exactly the parts that make writing yours.

Method 1 Plan before you prompt

  1. Step 1: Write down your goal

    In one sentence, decide what the reader should know, feel or do after reading. For example: “My manager should approve two days of remote work a week.”

  2. Step 2: List your key points

    Jot down the facts, examples and arguments only you know. AI can’t invent your real experience, and if it tries, the result will be generic or untrue.

  3. Step 3: Know your reader and tone

    Note who will read it (a customer, a teacher, a hiring manager) and the tone you want (warm, firm, formal, casual).

Method 2 Get a strong first draft

  1. Step 1: Give the full brief

    Paste your goal, points, audience, tone and length into the chat. Example: “Write a 150-word email to my manager asking for two remote days a week. Points: my commute is 2 hours, my output rose during last year’s remote trial, I’ll keep Monday and Thursday in office. Tone: professional and positive.”

  2. Step 2: Ask for an outline first for longer pieces

    For essays, reports or articles, ask for a structured outline. Fix the order and the argument before asking it to write any section.

  3. Step 3: Teach it your style

    Paste two or three paragraphs you’ve written and say “Match the tone, sentence length and vocabulary of this sample.” Ask it to avoid clichés and words you never use.

  4. Step 4: Ask for options

    Request two or three versions of an opening line or subject line, then pick the one that sounds most like you.

Method 3 Make the draft your own

  1. Step 1: Rewrite in your words

    Read the draft aloud. Change any sentence you wouldn’t naturally say. Swap generic lines (“I hope this email finds you well”, “in today’s fast-paced world”) for specific ones.

  2. Step 2: Add real details

    Add names, numbers, dates, examples and personal experience. Specific detail is what makes writing convincing and human.

  3. Step 3: Cut the padding

    AI drafts are often too long and repeat themselves. Delete filler phrases and keep each paragraph to one idea.

  4. Step 4: Check every fact

    Verify every statistic, quote, date, law and reference against a trustworthy source. AI tools sometimes invent citations and figures that look real.

Method 4 Polish and proofread with AI

  1. Step 1: Ask for feedback, not a rewrite

    Paste your final text and ask: “List any grammar mistakes, unclear sentences or places where the tone is too harsh. Don’t rewrite it.” Then fix them yourself.

  2. Step 2: Adjust tone or length

    Use quick follow-ups: “Make this 30% shorter”, “Make it warmer”, “Simplify for non-experts”.

  3. Step 3: Use built-in tools

    Copilot in Microsoft Word and Outlook and Gemini in Google Docs and Gmail (on eligible plans) can draft, rewrite and summarise right inside the document or email.

Useful writing prompts
Task Prompt to try
Reply to a difficult email Draft a calm, polite reply that says no to this request and offers an alternative: …
Shorten text Cut this to under 100 words without losing the key facts: …
Fix the tone Rewrite this to sound friendly but firm, not angry: …
Essay outline Create an outline for a 1,500-word essay arguing that … with three main points and counterarguments
Social post Turn this paragraph into a LinkedIn post of about 120 words with a strong first line: …
Proofread Point out spelling, grammar and clarity issues in this text as a list. Don’t rewrite it: …

Troubleshooting

The writing sounds robotic or generic

Give more specific details and a sample of your own writing, ask it to avoid clichés, then rewrite the opening and closing lines yourself.

It added facts or quotes I didn’t give it

Remove them unless you can verify them. Add “Use only the information I provide” to your prompt.

The answer is far too long

Set a word limit in the prompt, such as “maximum 120 words” or “3 short paragraphs”.

Frequently asked questions

Can teachers or AI detectors tell if I used AI?

AI detectors are unreliable and can wrongly flag human writing, but teachers often notice generic writing that doesn’t match a student’s usual style. The safest approach is to follow the rules and do the thinking and final writing yourself.

Is AI-written text plagiarism?

Using AI isn’t automatically plagiarism, but presenting it as entirely your own work where that’s not allowed can be treated as misconduct. AI can also reproduce phrases from existing texts, so cite sources properly.

Which AI tool is best for writing?

ChatGPT, Gemini, Copilot and Claude all write well. Choose the one built into the apps you already use, such as Copilot in Word or Gemini in Google Docs, for the smoothest workflow.

Summary

Plan your goal, points and tone first, then ask AI for an outline or draft with full context and a sample of your style. Rewrite it in your own words, add real details, check every fact, and use AI again to proofread. Follow your school’s or employer’s rules, and the result will be faster to write and still sound like you.

Written by

James Chambo

Founder

James is the Founder and Senior Editor of OnlineHow with more than 20 years of experience in internet publishing.