Sudowrite vs Novelcrafter: Which AI Fiction Tool Fits You?
Sudowrite vs Novelcrafter comes down to one question: do you want the AI handed to you, or do you want to choose it yourself? Choose Sudowrite if you want a fiction-trained AI, a story bible and one subscription, with no API keys to set up. Choose Novelcrafter if you want a planning workspace first, full control over which model you use, and a lower, more variable bill.
Neither tool is a "write my novel" button, and we'd be wary of anyone who sells them that way. Both are built for fiction. Both have a story bible. They differ in who supplies the AI and how you pay for it. What follows comes from the vendors' own documentation and published reviews, and we've said where sources disagree.
If you're still deciding whether an AI tool belongs in your process at all, start with our guide to the best AI for writing a book.
At a glance
| Sudowrite | Novelcrafter | |
|---|---|---|
| Core idea | Fiction-focused AI co-writer with its own Muse model | Writing and planning workspace; you bring your own AI |
| Price | From $10/month billed annually, $19 monthly (as of October 2026) | From $4/month for Scribe (no AI); AI starts at $8/month Hobbyist (as of October 2026) |
| AI cost | Metered in credits inside your plan | Billed separately by your AI provider |
| Story bible | Story Bible | Codex |
| Free option | Free trial, no card (credit amount not published; reportedly about 10,000) | 21-day free trial |
| Platforms | Web app, plus iOS and Android companion apps (apps English only) | Browser-based |
| Best for | Writers who want drafting help with minimal setup | Writers who want control, planning depth and model choice |
Approach to AI: done-for-you vs bring your own
This is the real fork in the road. Sudowrite builds the AI experience for you. Its Story Bible holds your characters, world and outline, and its fiction-trained Muse model is built for fiction. It also gives you access to models from OpenAI, Anthropic, Google and others, so you aren't locked to Muse.
Novelcrafter works the other way around. It doesn't provide an AI model, so the AI bill comes from your provider on top of the plan. You can connect hosted options like OpenAI and OpenRouter, or local models through LM Studio and Ollama. That local option is the big one if you want to keep text off third-party servers entirely.
The setup is where Novelcrafter asks more of you. One reviewer found that a non-technical writer wouldn't have an API key lying around and would need to create a provider account, generate a key and paste it in. There are quirks, too. Novelcrafter doesn't support Anthropic API keys directly, so Claude goes through OpenRouter. And a ChatGPT Plus subscription is not the same as an OpenAI API account.
Winner: Sudowrite for ease, Novelcrafter for control.
Story bible vs Codex
Both tools solve the same problem: keeping your protagonist's eye color and your magic system consistent across 90,000 words.
Sudowrite's Story Bible is a living reference for your project. It holds your synopsis, genre and style notes, characters, worldbuilding, outline and scenes. The core drafting tools (Write, Draft, Expand and Chat) consult it before generating anything. It's designed to be used as part of the generation flow, not just as a notebook.
Novelcrafter's Codex is deeper as a planning tool. It tracks characters, locations and worldbuilding, and Codex Progressions track changes to your story elements. Progressions matter more than they sound. They work like addendums that the AI only "sees" when you're working on or after the scene where the change happens, so it won't mention a scar in chapter two that your character gets in chapter twenty. You also get granular control: the Tracking tab configures whether and when an entry is included in the AI's context, and tags are for human organization and aren't seen by the AI. If you plot with spreadsheets or a tool like Plottr, the Codex will feel familiar. Our Plottr review covers that kind of planning-first approach.
Winner: Novelcrafter for planning depth and control over what the AI sees. Sudowrite if you'd rather not manage it.
Sudowrite vs Novelcrafter on pricing
The two tools charge in opposite ways, so the sticker prices mislead.
Sudowrite pricing
Sudowrite's plans differ by credits, not by features. Annual billing is $10/month for Hobby & Student (225,000 credits), $22/month for Professional and $44/month for Max (2,000,000 credits). Paid monthly, that's $19, $29 and $59. Prices are as of October 2026 and may vary by region.
Two things to check before you pay. First, Professional credits: Sudowrite's pricing page shows both 450,000 and 1,000,000 credits with a "2x as much" label, and one tracker treats 450,000 as the standing allowance and 1,000,000 as a promotion. Other sources list 1,000,000 flat, so confirm at checkout. Second, rollover: only Max rolls unused credits forward; on Hobby and Professional they reset each billing month.
How far credits go depends on your model. Premium models burn credits far faster than budget ones, so the same plan can last very different lengths depending on your choice. Credit use also changes with feature, context size, task complexity and output length.
Novelcrafter pricing
Novelcrafter's plans start from $4/month (as of October 2026): Scribe at $4 a month, Hobbyist at $8, Artisan at $14 and Specialist at $20, with yearly billing at $40, $80, $140 and $200. Scribe is the editor, unlimited books and series, the Codex and basic review tools, with no AI. Hobbyist adds AI on your own key and Artisan adds Workshop Chat. Specialist adds collaboration.
Then add your provider's bill. Free local models cost nothing but electricity. For hosted models, multiple users report roughly $5-6/month on OpenRouter alongside the Artisan plan, though a heavy user running premium models will pay more. That's anecdotal, not a quote, so watch your first month of usage.
Which is cheaper?
For light to moderate use, Novelcrafter plus a cheap model usually comes out lower. Sudowrite's advantage is predictability: you know your monthly ceiling. Novelcrafter's bill is open-ended unless you set spending limits at your provider.
Winner: Novelcrafter on cost, Sudowrite on predictability.
Privacy and data
Both companies say they don't train on your writing. Sudowrite says it never trains models on your work. Novelcrafter's privacy policy states it doesn't use user content to train AI or machine learning models, according to a published review of the policy.
The difference is who else sees your text. Sudowrite runs dozens of models, including Claude, open source models, its in-house Muse and several from OpenAI, so your passages are processed by whichever model you pick. In Novelcrafter, you choose that path yourself: a direct API key, OpenRouter, or a local model that never leaves your machine. If you handle sensitive manuscripts or have contractual restrictions, the local route is something Sudowrite simply can't match.
Novelcrafter also gives you scope controls. A toggle hides your writing from the AI when generating prose, summarizing or chatting.
Both are cloud tools, so your drafts live on their servers. If you stop paying, the two behave differently. On Sudowrite you can still access your projects but can't use AI features without a paid plan. On Novelcrafter you keep read-only access, and you can view and export your data but not add or edit. Export regularly either way.
Winner: Novelcrafter for control, especially with local models.
Keeping your own voice
No AI tool will write like you out of the box. Both try to help.
Sudowrite leans on style examples. Its Write and Rewrite tools include style matching to match an author's existing voice. Independent opinion is mixed. One reviewer found that it claims to learn from your text but its suggestions can sometimes veer off. Treat it as a caution rather than a verdict.
Novelcrafter has no voice engine of its own. Its help center includes a guide on how to guide AI with your own writing samples to copy your style, and because you choose the model and write the prompts, you control more of the process. That can produce better results if you're willing to tune it, and worse if you aren't.
Our honest advice: use either one for beats, brainstorming, rewrites and unsticking yourself, and write the key scenes by hand. If you publish with Amazon KDP, check the platform's current AI disclosure rules, which we cover in our self-publishing guide.
Winner: tie. Sudowrite is easier to start with, Novelcrafter is more tunable.
Pros and cons
Sudowrite
Pros
- Fiction-trained Muse model plus access to Claude, OpenAI and Google models
- Story Bible feeds directly into drafting tools
- One subscription, no API keys
- Every plan includes every feature, according to Sudowrite
- Web app plus iOS and Android companion apps
Cons
- Credits are opaque and heavy premium models drain them fast
- No permanent free plan, and only Max rolls credits over
- Professional credit allowance has been reported inconsistently
- Less control over where your text is processed
For more detail, see our Sudowrite review.
Novelcrafter
Pros
- Deep Codex with progressions, mentions tracking and AI-context controls
- Choose any compatible model, including local ones
- Low entry price; the no-AI Scribe plan is $4/month
- Hide any scene or entry from the AI
Cons
- AI isn't included, so costs are split between two bills
- Setup assumes you understand API keys
- Browser-based with no real-time sync between browsers or devices
- Read-only access if you stop paying
Which should you choose?
Choose Sudowrite if:
- You want to open a tab and start drafting with a fiction-focused AI
- You prefer a fixed monthly cost over tracking token spend
- You write dark or adult fiction and want to check how each model handles it (content rules differ by model, so read them first)
- You'd rather not learn what an API key is
Choose Novelcrafter if:
- You plan heavily and want the Codex to be the center of your process
- You want to swap models, use free ones or run local ones
- Privacy matters enough that you want to control where text goes
- You're comfortable with a bit of setup to save money
Skip both if you want a plain distraction-free drafting app with no AI. Our roundup of the best writing software for authors covers better options for that.
Try either one before committing. Sudowrite's trial needs no card (reportedly about 10,000 credits, though the figure isn't published), and Novelcrafter offers a 21-day trial with all features and no credit card. Use a real chapter, not a test paragraph. Try Sudowrite or start the Novelcrafter trial.
FAQ
Is Sudowrite free?
No. Sudowrite has no permanent free plan. New accounts get a free trial with no credit card, reportedly about 10,000 credits, though Sudowrite doesn't publish the number. Paid plans start from $10/month billed annually (as of October 2026). After cancelling you keep access to projects, but AI features stop.
Is Novelcrafter free?
No. Novelcrafter has a 21-day free trial but no permanent free plan. After that, Scribe is from $4/month (as of October 2026) without AI, and AI features begin on the $8/month Hobbyist plan. You also pay your AI provider separately, unless you use free or local models.
Which is better for beginners, Sudowrite or Novelcrafter?
Sudowrite, for most beginners. The AI is built in, so you skip API keys and provider accounts. Novelcrafter is capable but assumes more technical comfort, and one reviewer described the onboarding as frustrating before it clicked. If you like planning and don't mind a learning curve, it's worth the effort.
What are the best Sudowrite alternatives?
Novelcrafter is the closest alternative if you want more control and often lower costs for light use, though you supply the AI yourself. For a simpler drafting app, see our Novlr review. For broader picks across fiction and non-fiction, check the best AI for writing a book and our AI tools category.
Does Sudowrite or Novelcrafter train AI on my writing?
Both say no. Sudowrite states it never trains models on your work, and Novelcrafter's privacy policy says it doesn't use user content to train AI models. Your text still passes through whichever AI model you use, so read that provider's terms too, or use a local model with Novelcrafter.
Can I use Sudowrite and Novelcrafter together?
Nothing stops you from using both: Novelcrafter for planning and the Codex, Sudowrite for drafting help. It means two subscriptions and copying text between them, so we'd only suggest it if one tool clearly fills a gap in the other. Try each separately first.
