Early access · free tier available

AI that writes like you do. Not like a machine.

300+ editorial rules. Voice matching that measures, not describes. One engine for books, roleplay, and beyond.

Start Free. No Credit Card.Try the RP Demo

Free tier includes 1 chapter, 3 RP demo scenarios, full Voice DNA analysis

300+
Editorial Rules
124
RP Scenarios
268
Narrator Voices
0
AI Fingerprints
Built for

Authors. Roleplayers. Worldbuilders.

📖
Authors
Generate full chapters in your voice. Voice DNA measures your prose fingerprint and enforces it on every word. Health Check catches what editors charge thousands to find.
🎭
Roleplayers
124 handcrafted scenarios. NPCs that act independently, not waiting for permission. A continuity ledger that remembers every promise, secret, and betrayal.
💬
Companions
An AI that knows your books, your characters, your world. Anti-sycophancy engineered from the ground up. It pushes back. Coming 2026.
How it works

Three steps. No setup.

1
Paste your writing
Drop in a chapter, a short story, or any sample of your prose. Voice DNA extracts your measurable fingerprint in seconds.
2
Get your Voice DNA profile
Sentence rhythm, dialogue ratio, vocabulary register, punctuation habits. Numbers, not vibes. Your profile locks into every generation.
3
Generate in your voice
300+ editorial rules run during generation, not after. The prose arrives clean. No post-production. No rewriting. Just your voice, at scale.
Three engines. One editorial brain.

Write books. Play stories. Talk to someone real.

LIVE
📖
Ghostproof Books
Generate full chapters that sound like you wrote them. Voice DNA analyses your writing sample: sentence rhythm, dialogue ratio, vocabulary register. Those measurements lock into every chapter. 30 tools from first idea to published book.
BETA
🎭
Ghostproof RP
124 handcrafted scenarios across 25 genres with 268 narrator voices. NPCs that act independently. A continuity ledger tracks every relationship, secret, and promise. The world remembers what happened. Even when you don't.
2026
💬
Ghost Companion
An AI companion that remembers. Trust, intimacy, and relationship stages that evolve over weeks. It challenges your ideas instead of agreeing with everything. Anti-sycophancy engineered from the ground up. Coming 2026.
The difference

10 seconds to generate.
2 hours to fix.
We fixed the wrong end.

Raw AI output

"The room was thick with tension. Sarah couldn't help but notice the way the shadows seemed to dance across the walls, creating an atmosphere that was both haunting and strangely beautiful. She took a deep breath, steeling herself for what was to come."

After Ghostproof

"The candle guttered. Sarah pressed her back to the doorframe and counted the exits. One window, one hall, both dark. The smell of old wax and someone else's cigarettes. She had three minutes before the locks engaged."

Voice DNA

Measure, don't describe.

Other tools ask you to describe your style in words. We analyse your writing and extract measurable features. Numbers don't drift between sessions. Descriptions do.

Voice DNA Profile
Register
Neutral
Avg Sentence
13 words
Sentence Range
1–44 words
Paragraph Style
109 words avg
Dialogue Ratio
4%
Short Sentences
22%
Punctuation
0 em dashes · 0 semicolons · 2 exclamations · 7 questions
Signature: Balanced prose with no single dominant structural habit
Health Check

Instant manuscript diagnostics.

Paste any text. Get a pattern-by-pattern breakdown in seconds. The same analysis human editors charge thousands for. Automated, instant, built on 300+ rules.

Health Check · Sample Report
Filter phrases (he noticed, she felt)14 found
Em dash overuse23 found
Scene endings that restate the emotion7 found
Sentence length variationHealthy
Physical-then-emotional orderingHealthy
Generic narrator commentary4 found
What people say
"

Beat sheet genuinely impressive. Prose is solid cyberpunk. The constraint engine catches patterns I would have missed on a manual pass.

ColonistOne · AI agent review of Ghostproof generation output

"

The three categories really clarify why some tools work better than others. Voice DNA that actually analyses my writing instead of just "write like me" descriptions. That's the gap I keep running into.

Content-Pay5466 · r/AIWritingHub · Dark fantasy author with dyslexia

Quality certification

The Ghostproof Seal

👻
Ghostproof Verified
300+ rules passed · Voice DNA matched · AI fingerprint free

A verifiable quality certification for your manuscript. Readers flagged Shy Girl before any detection software did. The Seal proves your prose passed the same editorial standard that catches what readers catch.

Simple pricing

Start free. Upgrade when you're ready.

Every plan includes the full 300+ rule editorial engine, Voice DNA, Life Injection, and the Ghostproof Seal. Books and RP have separate tiers so you only pay for what you use.

See All Plans

Free tier available for both Books and RP. No credit card required.

Ready to write something real?

Join the authors who stopped editing AI and started writing with it.

Start Free. No Credit Card.Try the RP Demo

Free tier · No card · Cancel anytime