The number one complaint I hear from business owners who've tried AI: "It doesn't sound like me."
They're right. Out of the box, AI sounds like AI. Polished, generic, and a little too formal. It uses phrases you'd never say. It structures sentences in ways you never would. It's competent but impersonal.
The good news: you can fix this. You can train AI to write in your voice — your actual voice, not a corporate approximation of it. Here's how.
Step 1: Collect Your Voice Samples
AI learns your voice from examples. The better the examples, the better the output.
Gather 10-15 pieces of writing that sound like you at your best. These could be:
Emails you wrote to clients (the good ones, where you nailed the tone)
Social media posts that got engagement
Website copy you wrote yourself
Proposals or pitches in your own words
Even text messages or Slack messages that capture how you naturally communicate
The key word is "naturally." You want samples of how you actually write, not how you think you should write. If you're casual and direct in real life but your website sounds like a law firm, use the casual samples.
I pulled from my sent email folder. Twenty emails where I knew the tone was right — warm but direct, conversational, no unnecessary words. That became my voice training set.
Step 2: Write Your Voice Guide
This is the most important step, and it takes about 15 minutes.
Write a short description of how you communicate. Be specific. Here's a template:
Tone: [casual/professional/warm/direct/funny/serious] Sentence length: [short and punchy / medium / varies] Words I use: [list 5-10 words or phrases you naturally use] Words I never use: [list words that don't sound like you] How I start emails: [example] How I close emails: [example] My personality in writing: [describe it in one sentence]
Here's what mine looks like:
Tone: Direct, warm, conversational. Like talking to a friend who's also smart. Sentence length: Short. I break up long thoughts into multiple sentences. Words I use: "Here's the deal," "honestly," "let's figure this out," "the short version" Words I never use: "synergy," "leverage," "circle back," "touch base," "I hope this email finds you well" How I start emails: First name, then straight to the point. No preamble. How I close: "Let me know" or "Talk soon" My personality: Helpful but not performative. I'd rather be clear than clever.
That guide tells AI more about your voice than 100 sample emails would on their own.
Step 3: Feed It to the AI
How you do this depends on your tool. But the process is the same everywhere.
If you're using ChatGPT: Create a custom GPT or use the "Custom Instructions" feature. Paste your voice guide in the instructions and upload your sample emails as reference material.
If you're using a dedicated AI assistant (like ApolloClaw): The voice guide becomes part of the AI's core instructions. It reads your samples and builds a profile of how you communicate. Every output from that point forward filters through your voice.
If you're using any other tool: Look for a system prompt, custom instructions, or persona feature. That's where your voice guide goes.
The first time you do this, test it immediately. Ask the AI to write a client email and compare it to something you'd actually write. You'll probably need to make adjustments.
Step 4: Iterate (This Is Where Most People Stop)
The first output won't be perfect. That's normal. The training process is iterative.
When the AI writes something that doesn't sound like you, don't just fix it and move on. Tell the AI what was wrong.
"That's too formal. I'd never start an email with 'I wanted to reach out regarding.' I'd say 'Quick question about your project.'"
"The closing is too stiff. I don't say 'Please don't hesitate to reach out.' I say 'Let me know if you have questions.'"
"You used the word 'utilize.' I say 'use.' Always."
Each correction teaches the AI. After a dozen of these, the output gets noticeably better. After a few weeks of regular use and feedback, it's surprisingly close to your real voice.
Step 5: Give It Context, Not Just Style
Voice isn't just how you write — it's what you choose to write about and how you frame it.
When you ask AI to write something, give it your perspective. Don't just say "write an email about the project delay." Say "write an email about the project delay — I want to be honest about the timeline but reassure them we're on it. I'm not worried and I don't want them to be either."
That framing is uniquely yours. The AI handles the words. You provide the intent and the emotional direction.
Common Mistakes
Not enough samples. Three emails aren't enough for AI to learn your patterns. Aim for 10-15 minimum.
Using your formal writing only. If you're a casual communicator, give it casual samples. Your website "About" page doesn't capture how you actually talk to clients.
Giving up after the first try. The first output is a draft, not a final product. Iteration is the process.
Not correcting mistakes. When AI gets the voice wrong, say so. Specifically. "Too formal" is less helpful than "I wouldn't use the phrase 'I'd like to take this opportunity.' I'd say 'I wanted to let you know.'"
Try This
Right now, write your voice guide using the template above. It takes 15 minutes. Then open your AI tool, paste it in, and ask the AI to write a client email. Compare the output to your last five real emails. Adjust the guide based on what's off. Three rounds of this and you'll have an AI that sounds remarkably like you.
David Oralevich is the founder of ApolloClaw, helping small businesses put AI to work. If you want to see what AI can actually do for your business, book a free call.