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The consistency engine for fiction.
Lock your characters, world, and rules -- then enforce them across every chapter.
No account needed -- see consistency enforcement in 60 seconds
Lock your canon
Characters, world rules, plot points. Import an existing series or start fresh.
Write or generate
Write your own chapters or let AI generate them -- either way, consistency is enforced.
Every detail verified
9 checks run automatically. Contradictions caught before you see them.
Whether you write it yourself or use AI, long-form fiction drifts. These contradictions ruin series.
Her emerald eyes caught the firelight, sharp and searching.
He squinted through dark brown eyes at the coastline.
Same character. Different eyes. The AI forgot.
"Write this chapter in first person -- Kael's POV"
Kael watched the council from his seat. He noticed...
You said first person. The AI wrote third person anyway.
She flexed her remaining four fingers on her left hand.
She gripped the sword with both hands, all ten fingers tight.
Missing finger in Ch.2. Magically regrown by Ch.8.
Not suggestions. Not warnings. Hard verification gates that catch contradictions and force the AI to rewrite until it gets your story right.
Character Traits
Dead Stay Dead
POV Enforced
Plot Points Hit
World Rules
Voice Matched
Author Rules
Quality Scored
Bible Updated
Character Traits
Eye color, hair, scars -- locked and verified
Dead Stay Dead
Deceased characters can't appear alive
POV Enforced
First person means first person -- always
Plot Points Hit
Key events from your outline, confirmed in prose
World Rules
No magic means no magic -- scanned deterministically
Voice Matched
Your detective won't sound like your comic relief
Author Rules
Your custom constraints, verified by AI
Quality Scored
Below threshold triggers automatic rewrite
Bible Updated
New facts extracted and locked for next chapter
If any check fails, the AI rewrites. After 3 attempts, we block it from shipping.
The only AI writing tool that refuses to ship contradictions.
Every green cell is a story fact the AI remembered and enforced correctly. This is from a real novel written on Novarrium.
Real consistency data from a real novel written on Novarrium. Every green cell is a story fact the AI remembered and enforced correctly.
Zero contradictions.
Every fact locked. Every chapter consistent. Automatically.
Try It Free3 free chapters -- no account needed
A consistency platform built for fiction writers managing long, complex stories.
Your canon -- locked, tracked, and enforced
Every character detail, relationship, world rule, and plot point is automatically extracted, locked, and verified against every chapter. Import an existing series or build it as you go.
Write your own or let AI draft -- consistency enforced either way
Generate full chapters with your tone, pacing, and character voices built in. Every chapter is verified against your Story Bible before you see it -- and auto-corrected if anything drifts.
Voice-locked and verified every chapter
Each character gets a unique voice based on Big Five (OCEAN) personality traits. The AI uses psychological modeling to keep dialogue and behavior authentic -- and verifies it stayed consistent.
Multi-Arc Structure
Organize complex narratives with multiple storylines
Import Manuscripts
Continue existing works with full AI context
Ghost Writer Mode
Real-time AI suggestions as you type
Export to EPUB/PDF
Publish-ready formats for every platform
Every tool generates. Only one enforces consistency.
| Feature | Novarrium | Sudowrite |
|---|---|---|
| AI Chapter Generation | ||
| Persistent Story Bible | ||
| Post-Gen Consistency Checks | ||
| Auto-Retry on Contradiction | ||
| POV Perspective Enforcement | ||
| Dead Character Tracking | ||
| Voice/Personality Modeling | ||
| Hard Gates (Block Bad Output) | ||
| World Rule Scanning | ||
| Import Existing Manuscript |
Based on publicly available features as of May 2026. Full comparison
“I stopped finding eye color mistakes after chapter 3. The Story Bible just handles it.”
Fantasy Author
12 chapters, 0 contradictions
“Other tools generate and forget. This one generates and checks. Completely different experience.”
Sci-Fi Writer
8 chapters, 111 facts tracked
“My character lost a hand in chapter 2. By chapter 15, the AI still remembered. That never happens.”
Dark Fantasy Author
15 chapters, zero resurrections
Start with 3 free chapters. Upgrade when you need more creative power.
Bring your story to life
Build your catalog
Publish at scale
3 free chapters to start. No account needed. No credit card required.
No subscription needed. One-time purchase, never expires.
5
chapters
$5
$1.00/chapter
25
chapters
$20
$0.80/chapter
50
chapters
$35
$0.70/chapter
Works with any plan. Purchased chapters never expire.
The only AI writing platform that helps you demonstrate human authorship. Every edit tracked. Every revision recorded.
Every AI generation and human edit recorded with timestamps.
PDF certificates documenting your creative process.
Transparent AI vs. human contribution breakdowns.
Professional copyright pages in PDF and EPUB exports.
You retain 100% copyright on everything you create. Read our ownership terms
Techniques for managing long series, tracking canon, and avoiding contradictions.
Lock your canon once. Let the engine enforce it on every chapter after. Try it free.
No account needed -- see enforcement in 60 seconds