# Ghostwrite in five voices. Keep them all separate.
One profile per client, measured from their real writing. No bleed, no guesswork, no "does this sound like them?" panic at 11pm.
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The problem you already know about
You're not one writer. You're five, ten, maybe more, depending how many clients you've got on retainer this month. Client A writes short and blunt. Client B loves a rhetorical question. Client C hasn't used a semicolon since 2019 and never will.
Keep switching between them by memory and instinct, and eventually one voice leaks into another. Client B starts sounding a bit like Client A. You notice. Client B notices. That's the whole business, right there, quietly eroding.
One measured profile per client
ScriptGrain runs a two-pass stylometric analysis on each client's real writing: lexical choices, syntax, tone, rhetorical habits, punctuation, function words, content patterns, quirks. Forty-five attributes, measured, not guessed.
Each profile sits in its own lane. Nothing crosses over. Generate inside Client A's constraints and you get Client A, full stop, every time.
Evidence, not vibes
Here's the thing about telling a client "this sounds like you". They want proof, not reassurance.
Every draft ships with a voice-match score against that client's profile. It's not a testimonial. It's a number you can put in front of them before they even open the doc. That's the pitch that lands in the second meeting, not the first.
One profile, every format
LinkedIn post on Monday. Newsletter on Wednesday. A client email that needs sending in the next ten minutes. Same client, same voice, three completely different formats.
The profile doesn't care what you're writing. It holds the voice constant and lets the format change. That's the whole point of measuring the person and not the platform.
Profiles export too, as a portable tone-of-voice prompt for Claude, ChatGPT or Notion. Take the voice with you if you need to.
Plans built for how ghostwriters actually work
- Free: one profile, one full analysis. No card required. Try it before you commit to anything.
- Writer, £12/month: one profile. Fine if you've genuinely only got one client right now.
- Operator, £29/month: three profiles. Most solo ghostwriters land here.
- Studio, £99/month: ten client profiles. Built for the ghostwriter juggling a full roster.
- Agency, £299/month: unlimited profiles, ten team seats included. For agencies where more than one person is writing in the same client's voice, and it needs to hold.
Try it before you trust it
Build one profile free. See the 45 attributes it pulls from a real sample. Then decide if it's worth paying to generate in that voice.
Ten clients, ten voices, zero bleed. That's the job. This is the tool that keeps it that way.
ScriptGrain · Why ScriptGrain · Sample voice profiles · The Journal · Support