How to get AI to write email replies that sound like you
Updated
Short answer: Give the model three things: several emails you actually sent, a few short rules about how you write (how you greet, how long, how you sign off), and the whole thread it’s replying to. Then keep what you change: every edit you make to a draft is a rule the next draft should follow.
Why do AI drafts sound generic?
Without examples, a model writes the average email: a warm opener, three paragraphs, “Please let me know if you have any questions,” and a formal sign-off. Most people write shorter and plainer than that, and differently to different people. The fix is to show it how you write rather than describe it.
Show it how you write
- Give it three to five emails you sent recently, ideally to the same person or in similar situations.
- Short ones count: a two-line reply says as much about your style as a long one.
- Leave out quoted history, so it learns from your words and not the thread’s.
Write down a few rules
- “Lead with the answer, then the reason.”
- “Two or three sentences unless they asked for detail.”
- “No greeting beyond their first name; sign off with just Alex.”
- “No exclamation marks, and never ‘I hope this finds you well’.”
Draft a reply to the email below in my voice. Three emails I sent recently: … My rules: lead with the answer, under 60 words, first name only, sign off “Alex”. The thread: …
Give it the whole thread
A reply depends on what was already said. With the whole thread, the draft answers the actual question, doesn’t repeat what you said last time, and gets names and dates right.
Turn your edits into rules
Each time you change a draft before sending, notice what you changed: removed an apology, cut the second paragraph, swapped “Best regards” for your name. Add it to your rules, and the next draft needs less editing.
Read it before it goes
Check names, dates, numbers and anything the draft commits you to. A model can promise a deadline you didn’t agree to; keep the tools that send only when you say so.
Tools that draft replies in your voice
| Tool | What it learns from | Sends on its own |
|---|---|---|
| Lowtide | Your sent mail to that person, and your edits, kept as style rules | No: you press Send, with Undo |
| Gmail with Gemini | Suggested replies that match how you write | No |
| Superhuman | Drafts in your voice (Auto Drafts on Business) | No, its drafts wait for you |
| Shortwave | Your sent mail | Not stated on its site |
| Fyxer | Your tone, on Pro and up | No |
| Cora | Your email history | No |
Questions people ask
How many example emails does AI need to match my style?
Three to five recent ones usually make a clear difference, especially to the same person. More helps less than a few clear rules about what you always or never do.
Is it OK to send an email AI wrote?
Yes, if you’ve read it and it says what you mean. You’re responsible for what it says, so check names, dates and anything it commits you to.
Can AI send emails for me?
Some tools can, but most email assistants, Lowtide included, draft and wait for you. For anything beyond routine outreach, that’s the safer way.
Sources
What this guide says about other products and research comes from these sources, checked on the date above.