--- title: "How to get AI to sound like my brand" url: https://howtogetaito.com/sound-like/my-brand/ published: 2026-09-15 updated: 2026-09-22 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: "Turn your brand's existing copy into a voice profile every AI tool can use, so emails, posts and pages read like one company wrote them." tools: ["ScriptGrain","ChatGPT","Claude","Jasper","Writer"] ours: ["ScriptGrain"] disclosure: "ScriptGrain is made by the publisher." language: en-GB --- # How to get AI to sound like my brand > Turn your brand's existing copy into a voice profile every AI tool can use, so emails, posts and pages read like one company wrote them. Published 2026-09-15 · Last updated 2026-09-22 · By Jack Stovell (https://i.hilyt.it/jack) · Canonical page: https://howtogetaito.com/sound-like/my-brand/ 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 You'll build a voice profile for your brand and use it to shape everything from emails to social posts, so people recognise your writing even when AI drafted the first pass. Not a vibe, not three adjectives on a slide somewhere. An actual, usable profile you can point any AI tool at. ## Before you start Right, quick reality check before we get into it. "Brand voice" gets thrown around a lot, and most of the time it means someone wrote "friendly but professional" in a brand guidelines PDF three years ago and nobody's opened it since. That's not a voice. That's a wish. A real brand voice is made of measurable habits. Sentence length. How often you use a semicolon (never, if you're doing it right). Whether you lead with the point or build up to it. Whether "we" or "I" shows up more. Whether you say "utilise" or "use". These are the things readers pick up on without knowing they're picking up on them, and they're exactly the things generic AI output gets wrong, because generic AI defaults to smooth, safe, middle-of-the-road prose that sounds like nobody in particular. What you'll need before you start: some existing brand copy. Doesn't need to be perfect, just needs to be real. Website pages, old newsletters, a founder's LinkedIn posts, whatever's out there already. If you've got nothing written yet, that's fine too, you'll just be building the voice as you go rather than pulling one out of what already exists. ## Get set up Here's where I'd start, and I'll say upfront I've got a stake in recommending this one, but it genuinely fits the job. ScriptGrain builds a voice profile for a brand, not just for a person, and you can feed it existing brand copy (paste it in, upload files, or hand it a few URLs) or use its "mimic brand" option, which crawls your own public website and builds a profile from what's already there. So if you've got a website, you're basically five minutes from a working profile. What makes it useful rather than just another prompt template is that it measures 45 stylometric reference points, things like sentence length and variance, clause ordering, punctuation habits, a formality score from 0 to 10, whether you hedge or state things with confidence, vocabulary diversity, your preferred and filler phrases, function word patterns. That's the difference between a profile that says "sound friendly" and one that actually captures your rhythm and structure. Every draft you generate gets scored against the profile, and there's a polish loop that revises the draft toward it, rather than just handing you one shot and hoping. Free tier gets you one profile and one free draft, enough to see if it's worth it for you. Paid tiers unlock editable preferred-word and filler-phrase lists (the actual measurements stay read-only on purpose, which I think is the right call, you shouldn't be able to fake your own sentence variance). Operator is £29 a month for 3 profiles, handy if you want the brand plus a couple of founder voices. Studio is £99 a month, 10 profiles, team seats. API and MCP server access on every tier, so once you've got the profile built you can wire it into whatever you're already using. Now, the honest alternative, and one that costs nothing extra if you're already paying for ChatGPT or Claude: write yourself a proper style guide and paste it into ChatGPT's custom instructions or a Claude Project. This works. It's cheap, it's quick, and it's genuinely good for hard rules, banned words, things you never want to see again in your copy. The catch is there's no actual measurement happening, you're describing the voice in words rather than capturing it in data, and every teammate who sets this up will describe it slightly differently. You'll end up with five versions of "our brand voice" scattered across five people's accounts. There's also Jasper's Brand Voice feature and Writer.com, both built for marketing teams, both describing voice through rules and examples rather than measurement, both priced accordingly (think team platform, not individual tool). If you've already got a marketing stack and one of these is in it, worth checking what's already available to you before adding another tool. Whichever route you go, the actual goal is the same: get the brand voice living somewhere every tool you use can reach it. One profile, many outputs. Not a Google Doc that only you remember exists. ## Try it yourself Right, let's actually use this. Three prompts, three different jobs. First one, a straightforward first draft using a voice profile you've already built or pasted in: ``` Here is our brand voice profile: [paste profile or style guide here] Using this voice, write a 150-word email announcing a new feature launch. The feature is [describe feature]. Keep sentences short where the profile suggests short sentences. Don't add exclamation marks unless the profile shows we use them. ``` Second one, for when you've got a draft that's fine but doesn't quite sound like you yet: ``` Here is our brand voice profile: [paste profile or style guide here] Here is a draft I've written: [paste draft] Rewrite this so it matches the voice profile more closely. Tell me specifically what you changed and why, rather than just handing back new text. ``` Third one, a consistency check across multiple pieces, which is where a lot of brand voice work quietly falls apart: ``` Here is our brand voice profile: [paste profile or style guide here] Here are three pieces of copy we've published recently: [paste all three] Compare them against the profile. Flag anywhere they contradict each other in tone, sentence length, or vocabulary. I'm not asking you to rewrite them, just tell me where they drift. ``` That third one's underrated. Most brand voice problems aren't "this one email sounds wrong", they're "these five emails sound like four different companies wrote them". ## Check the result Don't just read a draft and go "yeah, that seems fine" and move on. Run it through some actual tests. Read it out loud. Genuinely, out loud. If it doesn't sound like something a person at your company would say in conversation, that's your first sign something's off. Put it next to something you know is on-voice, an old email, a founder's actual writing, whatever you trust. Read them back to back. Do the sentences feel like they came from the same place? Same average length, same level of formality, same habit of starting sentences the way you do? Check for AI's default tics. Does it overuse "furthermore" or "in today's world" or start three paragraphs in a row with "Additionally"? Generic AI output tends to smooth everything into the same even, slightly hedging register regardless of what voice you asked for, so if that's creeping in, the profile hasn't fully taken. Check the vocabulary specifically. Is it using words your brand would actually use? If your brand never says "utilise" and the draft says "utilise", something's slipped. And ask someone else, ideally someone who didn't write the prompt, whether they can tell it was AI-assisted. Not a perfect test, but a useful gut check. ## If it doesn't work A few things worth knowing before you go pasting things into any AI tool. Don't hand over anything you wouldn't want stored or seen elsewhere: unreleased pricing, unpublished legal terms, personal customer data, anything under an NDA. Most mainstream AI tools have settings around data retention and whether your inputs get used for training, and these differ by tool and by plan, so check the actual settings for whatever you're using rather than assuming. If in doubt, strip out anything sensitive before you paste, or use a placeholder. On drift: it happens, and it's normal. Long chat sessions in particular tend to wander, the AI picks up patterns from whatever you've typed recently in the conversation rather than sticking to the original brief. If a draft starts sounding a bit off after a long back-and-forth, start a fresh session and re-paste the voice profile rather than trying to correct course mid-conversation. It's usually faster. If the output keeps sounding generic no matter what you do, the profile itself is probably too thin. A few adjectives and a couple of example sentences isn't enough for any tool to work with, human or AI. Go back and feed it more real copy, the more genuine examples it has, the more there is to actually measure and match. And if different people on your team are getting wildly different results from what's supposedly the same voice, check whether they're actually using the same profile or just their own interpretation of a shared brief. That's usually the real problem, not the AI. ## Questions people ask ### What do I need before building a brand voice profile? Some existing brand copy. It doesn't need to be perfect, just real: website pages, old newsletters, a founder's LinkedIn posts, whatever's already out there. If you've got nothing written yet, that's fine too, you'll just build the voice as you go. ### Is there a free way to get AI to write in my brand voice? Yes. ScriptGrain's free tier gets you one profile and one free draft, enough to see if it's worth it. Or, if you already pay for ChatGPT or Claude, write a proper style guide and paste it into ChatGPT's custom instructions or a Claude Project, which costs nothing extra. ### What does ScriptGrain cost and what do the paid tiers unlock? Operator is £29 a month for 3 profiles, Studio is £99 a month for 10 profiles and team seats. Paid tiers unlock editable preferred-word and filler-phrase lists; the actual measurements stay read-only on purpose. API and MCP server access is on every tier. ### What shouldn't I paste into an AI tool when working on brand copy? Don't hand over anything you wouldn't want stored or seen elsewhere: unreleased pricing, unpublished legal terms, personal customer data, anything under an NDA. Check the data retention and training settings for your tool and plan, and strip out anything sensitive or use a placeholder. ### How do I check whether the AI draft actually sounds like my brand? Read it out loud, then put it next to something you know is on-voice and read them back to back. Check for AI tics like "furthermore" or "in today's world", check the vocabulary, and ask someone who didn't write the prompt whether they can tell it was AI-assisted. ## Keep exploring Once your brand voice is sorted, worth looking at "[How to get AI to sound like me](https://howtogetaito.com/sound-like/me/)" if you're a founder writing under your own name alongside the brand, the two voices are related but not identical, and it's worth treating them separately. And if you're building out other things for the brand, there's "[How to get AI to build me a website](https://howtogetaito.com/build-me/a-website/)", which covers getting the same kind of consistency into a build rather than just copy. ## Sources and review notes - ScriptGrain — brand profiles, mimic brand, what is measured, pricing: https://scriptgrain.com/ and https://scriptgrain.com/pricing - OpenAI — Prompt engineering guide: https://platform.openai.com/docs/guides/prompt-engineering - 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.