Now in early access

Write your book
in your voice.

The first writing studio that learns your voice, drafts chapters in it, edits for human depth, designs your cover, and walks you through Amazon KDP publishing.

Start Writing Free
manuscript-studio-os.vercel.app
MANUSCRIPT
Chapter 1: Opening
Scene 1
Scene 2
Chapter 2
Chapter 3
The Morning Before
CHAPTER 1

The cleaning crew moved through the floor like water. Slow at first, near the wall, then faster as they reached the open space between the slot machines and the cage.

Marcus watched from the second-floor balcony. He had been the supervisor here for nine years. He knew the way the building breathed before it filled with people.

[Continuing in your voice...]

Core tools

Everything the writing needs. Nothing it doesn't.

Six tools, one pipeline. Every stage knows about your voice, your book, and the stage before it.

Quick Draft
Describe your book in a paragraph. Get a full chapter outline and an opening chapter written in your voice, ready to continue.
Voice Training
Upload past writing or paste a sample. The studio profiles your cadence, sentence length, word choice, and the small habits that make your prose yours.
Sovereign Prose Validator
Four-layer check: AI detection score, somatic interiority depth, voice consistency, and pacing. Each finding links to a one-click rewrite.
Structure Check
Scene and chapter-level structure analysis. Spot pacing gaps, missing beats, and chapter hooks before your editor does.
Title Generator
Generate title and subtitle options matched to your genre, description, and Amazon keyword strategy. Ranked by marketability.
KDP Launch Walkthrough
Step-by-step Amazon publishing guide with generated description, backend keywords, categories, and pricing suggestions. Copy and paste your way to live.
How it works

Blank page to published in three stages.

1
Upload your voice sample
Paste or upload a few pages of your past writing. The studio builds a voice profile that captures how you actually write.
2
Generate your draft
Describe your book. Quick Draft writes a chapter outline and opens the manuscript in your voice. Keep going scene by scene or chapter by chapter.
3
Polish and publish
Run the Prose Validator, fix what it finds, design your cover, export KDP-ready files, and walk through the Amazon listing step by step.
Pricing

Simple. Honest. Lower than the alternatives.

Start free. Upgrade when you're ready.

Free
$0/ forever
  • ✓1 project
  • ✓1 voice profile
  • ✓30 engine calls per day
  • ✓Export .docx and .txt
  • ✓No credit card required
Start free
Most popular
Pro
$19/ per month
  • ✓Unlimited projects
  • ✓Unlimited voice profiles
  • ✓500 engine calls per day
  • ✓All exports (EPUB, PDF, .docx)
  • ✓Cover designer
  • ✓Voice consistency checks
  • ✓Priority engine
Go Pro
Studio
$39/ per month
  • ✓Everything in Pro
  • ✓2,000 engine calls per day
  • ✓Whole-manuscript line edit
  • ✓AI cover backgrounds (coming)
  • ✓Spine + back cover for paperback
  • ✓Priority support
Go Studio
Atticus is $147 one-time. Sudowrite Pro is $22/mo. Vellum is $200 and Mac-only. We do everything they do, plus voice-trained writing.
Authors

Written by real people, in their actual voices.

"Testimonial coming soon."

S.M.
S.M.
Romance author, 14 titles on Amazon

"Testimonial coming soon."

D.R.
D.R.
Thriller writer, first-time KDP publisher

"Testimonial coming soon."

P.K.
P.K.
Nonfiction author, business books

Stop juggling four apps.
Start writing your book.

Free forever for your first project. One pipeline from blank page to Amazon.

Start Writing Free