VoiceTwin — your writing voice, as a copy-paste prompt for any LLM

Stop publishing AI slop. VoiceTwin captures the way you actually write — vocabulary, rhythm, sentence shapes, taboo phrases — and turns it into a copy-paste prompt that works in ChatGPT, Claude, Gemini, Perplexity, and Mistral.

What you get

Voice Passport (9 USD, one-time) — editor-reviewed prompt block delivered within ~24 hours.
10-point voice audit — your archetype (Visionary, Challenger, Sage, etc.), strengths, weaknesses, fixes.
Ghost Mode ($29 USD/month, optional) — hosted generator that keeps learning from your feedback.
Roast My Post — free, instant, brutally honest critique of any draft post. No signup.

Who it is for

Solo founders writing their own LinkedIn posts.
Agencies ghostwriting for multiple distinct-voice clients.
Content creators who use AI but refuse to publish generic-sounding output.

How it works

Upload 3–10 of your best published posts.
Receive a 10-point breakdown of your style and your voice archetype within minutes.
Within ~24 hours, your custom Voice Passport is editor-reviewed and delivered. Paste into any LLM.

Languages

VoiceTwin is bilingual (English + Québec French). Browser language is auto-detected.