--- title: "How to get AI to sound like me" url: https://howtogetaito.com/sound-like/me/ published: 2026-09-15 updated: 2026-10-04 author: "Jack Stovell" author_profile: https://i.hilyt.it/jack publisher: "Adapt Progress Evolve" publisher_legal_name: "Adapt Progress Evolve Limited" publisher_company_number: "10047328" publisher_vat_number: "GB362654684" summary: "Feed an AI your real writing so its drafts come back in your rhythm and habits, not generic assistant voice — with a measured way to check how close it got." tools: ["ScriptGrain","ChatGPT","Claude"] ours: ["ScriptGrain"] disclosure: "ScriptGrain is made by the publisher." language: en-GB --- # How to get AI to sound like me > Feed an AI your real writing so its drafts come back in your rhythm and habits, not generic assistant voice — with a measured way to check how close it got. Published 2026-09-15 · Last updated 2026-10-04 · By Jack Stovell (https://i.hilyt.it/jack) · Canonical page: https://howtogetaito.com/sound-like/me/ Author profiles: X https://x.com/StovBuilds · Instagram https://www.instagram.com/stovbuilds · LinkedIn https://www.linkedin.com/in/jackstovell/ Operated by Adapt Progress Evolve Limited. Registered in England and Wales, company no. 10047328, registered office 5 Brayford Square, London E1 0SG. VAT GB362654684. ## What you'll be able to do Most AI writing sounds the same because most people ask it to write the same way, everyone gets "helpful assistant" energy back, all rounded edges and no personality. This guide is about fixing that for your own writing, specifically. The same flat result shows up when you ask for something personal like a poem, and it stings more there. A poem for a card, a speech or just a laugh should be about one particular person, not about "friendship" in general. If that's what you're after, [getting AI to write a poem](https://howtogetaito.com/write/a-poem/) walks through how to make it sound like the person it's for. By the end you'll know how to feed AI your actual sentences, your rhythm, your habits (good and bad), so it writes back something that sounds like you wrote it on a decent day, not like it wrote it at all. You'll have real prompts to copy, a way to check if it worked, and a plan for when it doesn't. No prior AI experience needed. You just need some writing you've already done. ## Before you start Here's what trips people up straight away: they think describing their voice and measuring it are the same thing. They're not, and that difference matters more than anything else in this guide. Describing your voice sounds like typing "write in a casual, friendly tone with short sentences" into ChatGPT. It's fine. It works, sort of, for about one response. Then the AI drifts back to its own defaults because you've given it an instruction, not a pattern to follow. Measuring your voice means actually looking at your writing and working out what's true about it: how long your sentences run, on average, and how much that varies. Whether you use dashes or semicolons or neither. How often you contract words. Whether you open paragraphs the same way each time without noticing. That stuff is invisible to you when you're writing, but it's exactly what makes your writing yours. Once you've got those numbers, there's a second job: getting rid of the stuff that makes AI text read like a machine wrote it, the em dashes, the "delve", the tidy little conclusions that wrap everything up too neatly. That's what [making AI text read human](https://howtogetaito.com/sound-like/a-human/) is all about, and it's the bit I'd do straight after this. So before you touch a tool, have a think about what you're actually trying to solve. Do you want AI to draft emails that sound like you wrote them at 8am before coffee? Blog posts that don't read like a corporate FAQ? A rough first draft you can then edit into your own voice faster? All valid, all slightly different jobs, and it helps to know which one you're doing. ## Get set up You need two things: a way to capture your voice properly, and some actual writing samples. For the first bit, I'd recommend starting with [ScriptGrain](https://scriptgrain.com). Here's why: it doesn't ask you to describe your writing style in a text box and hope for the best. You paste in or upload things you've already written, one piece is enough to start but 3,000+ words across a few different samples works better, and it measures 45 separate stylometric points against that writing. Sentence length and its variance, clause ordering, whether you front-load your point or build to it, how often you use parentheses, dash and semicolon habits, contraction frequency, vocabulary diversity, word length spread, your go-to phrases and filler words, formality on a 0 to 10 scale, whether you hedge or state things plainly, and the stuff you'd never notice yourself doing, like your the/a/an ratio or whether you say "but" or "however", or how you tend to open paragraphs. All of that gets built into a reusable voice profile in about 45 seconds. Every draft you then generate comes back with a voice-match score, worked out from actual measured differences against your profile, not a general "does this feel right" guess. If the score's low, there's a polish loop that revises the draft closer to your voice. There's a free Reader tier: one voice profile, one writing analysis, one free draft, no card needed. Writer is £12 a month, Operator £29. Every tier includes API access and something called an MCP server (mcp.scriptgrain.com), which basically means you can plug your measured voice profile into Claude or another assistant and have it write in your voice from inside that tool. There's also a free no-signup style analysis tool at scriptgrain.com/tools/writing-style-analysis that runs right in your browser if you just want to see what your own writing measures as, before committing to anything. Now, the honest alternatives, because ScriptGrain isn't the only route here. You can paste a few samples into ChatGPT or Claude and say "write like this." It works, for that one conversation. Nothing gets measured, so you can't check how close it actually landed, and it'll drift back toward generic AI cadence the longer the chat goes on, especially once you're several messages deep and it's forgotten the brief a bit. You can use ChatGPT's custom instructions and memory, or Claude's Projects and Styles features. These are genuinely useful for persistent tone rules, things like "always use British spelling" or "keep it under 200 words," and they stick around across sessions, which is an improvement. But they still don't measure your actual rhythm or sentence structure. You're telling it rules, not showing it patterns. Then there's Jasper's Brand Voice or Writer.com, which are built for teams and brands rather than individuals, and priced accordingly. They work by describing your voice through rules and examples too, just at a bigger scale with more people needing to stay consistent. The pattern across all three: they describe a voice. Measuring one is a different job, and it's the bit that actually holds up over multiple drafts. Whichever route you go, gather your samples now. Emails, blog posts, notes to friends, whatever you've got that sounds like an unforced version of you. More is better, but one honest piece beats three stiff ones. ## Try it yourself Here are three prompts that each do a different job. Copy them as they are, or swap in your own writing where marked. First, if you're working directly in ChatGPT or Claude without a dedicated tool, use this to get it to actually notice your patterns rather than just vibe-check your tone: ``` Here is a piece of writing I did. Don't summarise it or tell me what it's about. Instead, analyse HOW it's written: average sentence length and how much it varies, whether I use short punchy sentences or long winding ones, my use of contractions, dashes, semicolons and parentheses, my most common opening words for sentences and paragraphs, and any phrases I repeat. List these out plainly. [paste your writing here] ``` Second, once you've got that analysis (or a measured voice profile), turn it into something reusable for future drafts: ``` Based on the writing style analysis above, write me a short style guide I can paste into future prompts. Keep it to plain bullet points covering: sentence rhythm, punctuation habits, formality level, contractions, and any words or phrases I use often. Don't add anything you didn't observe in the sample. ``` Third, test it on something new. Give the AI a fresh topic and your style guide, and see what comes back: ``` Using the style guide below, write a 150-word piece about [your topic here]. Match the sentence rhythm and punctuation habits exactly, don't smooth them out. [paste your style guide] ``` If you're using ScriptGrain or a similar measured-profile tool, the equivalent move is simpler: generate the profile once, then just ask for drafts against it directly, the tool handles matching for you rather than you re-explaining your style each time. ## Check the result Don't just read the draft and go "yeah, that seems alright." Actually test it. First test: read it out loud. Does it sound like something you'd say, or does it sound like a LinkedIn post wearing your coat? You'll know within a sentence or two. Second: count sentence lengths. Pull up a paragraph and roughly measure a few sentences. If they're all sitting in the same narrow band, say everything's 15 to 20 words long, that's a tell. Real writing (yours included) usually swings about more than that. Third: check for your actual habits. Do you use dashes? Semicolons? Do you start paragraphs the same way often? Look for those specifically in the draft rather than just the general tone. Fourth, if you've used a tool with a voice-match score, like ScriptGrain's, look at what it's actually measuring low on. A low score against "contraction frequency" tells you something concrete you can fix. A vague "doesn't sound like you" feeling doesn't. Fifth: give the draft to someone who knows how you write, without telling them it's AI-assisted. If they don't blink, that's your real test passed. ## If it doesn't work A few common reasons this goes sideways. Your sample size is too small. One 200-word email doesn't give any tool much to work with, human or AI. Feed it more, and feed it writing that's actually representative of how you write when you're not trying too hard. You're mixing contexts. If you write formal reports at work and chatty texts to mates, and you paste both in as "my voice" without saying which is which, you'll get a muddled result. Be specific about which voice you're after. The tool is drifting mid-conversation. This happens a lot with plain ChatGPT or Claude sessions, the longer you chat, the more it forgets the style brief. Re-paste your style guide, or start a fresh session, or use a tool that holds the profile persistently rather than in short-term memory. Now, the important bit: what not to hand over. Don't paste in anything containing other people's personal details, confidential work material, or anything you wouldn't want stored somewhere outside your control. Most mainstream AI tools have their own data retention and training policies, and they vary, so it's worth actually reading them rather than assuming. If you're using a voice-analysis tool, check whether your samples are stored, and for how long, before you upload anything sensitive. When in doubt, use writing that's already public, like blog posts you've published, or drafts you're happy existing on someone else's server. ## Questions people ask ### How do I get AI to write in my own voice? Feed it your actual sentences rather than describing your tone. Paste in writing you've already done, get it to analyse how it's written, turn that into a short style guide, then reuse that guide on new drafts. ### Is there a free way to copy my writing style? ScriptGrain has a free Reader tier with one voice profile, one writing analysis and one free draft, no card needed. There's also a free no-signup style analysis tool that runs in your browser. Writer is £12 a month and Operator £29. ### Can't I just tell ChatGPT to write like me? You can paste samples into ChatGPT or Claude and say "write like this", and it works for that one conversation. Nothing gets measured, so you can't check how close it landed, and it drifts back toward generic AI cadence the longer the chat goes on. ### How much writing do I need to give it? One piece is enough to start, but 3,000+ words across a few different samples works better. One 200-word email doesn't give any tool much to work with, and one honest piece beats three stiff ones. ### What shouldn't I paste into an AI writing tool? Don't paste anything containing other people's personal details, confidential work material, or anything you wouldn't want stored outside your control. Check whether your samples are stored and for how long, and when in doubt use writing that's already public. ## Keep exploring If this went well and you want to take it further, there are two related guides worth reading next: "[How to get AI to sound like my brand](https://howtogetaito.com/sound-like/my-brand/)", which is the same idea but for a business voice rather than a personal one, and "[How to get AI to send emails for me](https://howtogetaito.com/send/emails-for-me/)", which builds on having a working voice profile and puts it to use somewhere you'll actually feel the time saved. ## Sources and review notes - ScriptGrain — how it works, what is measured, pricing: https://scriptgrain.com/ and https://scriptgrain.com/pricing - ScriptGrain free in-browser writing style analysis: https://scriptgrain.com/tools/writing-style-analysis - OpenAI Help — Custom instructions for ChatGPT: https://help.openai.com/en/articles/8096356-custom-instructions-for-chatgpt - Anthropic Help — Creating and managing Projects in Claude: https://support.claude.com/en/articles/9519177-how-can-i-create-and-manage-projects - Jasper Brand Voice: https://www.jasper.ai/products/brand-voice · Writer: https://writer.com/ Review date: 15 September 2026 — every source above was opened and checked against the text on that date.