Add some of your own writing. You get back one file that tells ChatGPT, Claude, Gemini or any other AI how you write, so the next draft sounds like you instead of like a machine.
Same prompt, two writers
“Write a short post about building a personal brand.”
Default AI
In today's fast-paced digital landscape, building a personal brand has become more important than ever. It's not just about posting content, it's about crafting a compelling narrative that resonates with your audience and unlocks meaningful opportunities. By leveraging the right strategies, you can elevate your presence, foster genuine connections, and embark on a transformative journey toward lasting success.
Eleven stock phrases and nothing that could only be said about this person. Change the subject and it still works.
With a voice profile
Everyone says you need a personal brand. I resisted that for two years, mostly because the word brand makes me picture a logo on a coffee cup.What actually changed things was smaller. I started writing one short post a week about something that annoyed me at work. No graphics, no hashtags, no "thrilled to share." Just the thing and what I took from it.Three months later, two people I'd never met asked if I did consulting. That's the whole story. No funnel, no system. Just saying the true thing out loud often enough that the right people heard it.
Two years of resistance, a coffee cup, one number and no use of the word funnel. No one else would put it this way.
What lands in the file
Everything in the file is something an AI can act on, and every example in it is a sentence you actually wrote.
## Sentences
<trait strength="strong" category="sentences">
<pattern>You open with the conclusion, then double back
to explain it.</pattern>
<examples>
<example source="blog">Three months later,
two people I'd never met asked if I
did consulting.</example>
</examples>
</trait>
## Never do this
<rule id="em_dash">No em-dashes. Use a comma,
a full stop, or rewrite it.</rule>
That example is one of your own sentences, not a paraphrase. It is the difference between this file and a prompt you could have written yourself.
Paste posts, drop in files, or link a blog. Anything you already wrote.
A few short questions about what you write and who reads it. Optional, but it sharpens the result.
Download one file and hand it to any AI. It writes like you from then on, and it is yours for good.
Who it is for
Newsletters, blog posts, a LinkedIn habit. You have a voice and you can hear it going missing in drafts.
Consultant, founder, freelancer. Your emails and proposals are written by you, because the wrong sentence costs money.
You use the first draft and then spend twenty minutes sanding off sentences that are true of everyone.
It can't invent a voice you don't have, and it won't write about work you haven't done. When a detail is missing, it leaves a blank for you to fill rather than making one up.
Yes, up to a point. Free builds one voice profile from 1,500 words of your writing and gives you the markdown file, with no card. The Voice File is $49 once: your whole corpus, every export format and three builds. Neither is a subscription, and anything you build is yours to download again forever.
No. You pay once for a build and keep everything it produced. There is nothing to cancel, no renewal date, and no expiring access. Coming back in two years to download the same profile again costs nothing.
At least 250 words to start, and more is better. Every trait in your profile is backed by sentences you actually wrote, so a blog post, a few emails and a chat export give it far more to work with than a single page.
Yes, and only your side of it. We keep your messages and drop the AI replies, since you do not want it learning to sound like the thing it is replacing.
Put voice-profile.md wherever the tool keeps project or knowledge files: a ChatGPT Project, a Claude Project, a Gemini Gem. Those hold the full file. The short version is only for instruction boxes with a character limit.
An AI reads it to build the profile and it is not saved. We keep the finished profile and your email. PDFs are the exception: they stay in private storage that only this app can open, so the text can be read.
You see everything before it goes in. Each trait is shown with the sentences that produced it, and you can cut the trait, edit the wording, or remove an example you would not want quoted.
Your writing isn't kept
An AI reads it to build your profile and we don't save it. We keep the finished profile and your email. PDFs are the exception: they stay in private storage that only this app can open.
One file, works everywhere
Paid for once, with no subscription and no expiry. Download any version again whenever you like, and the file keeps working with no account here at all.