Writing Free Tier

Sudowrite

Sudowrite is an AI writing partner built specifically for fiction writers, helping them brainstorm, draft, expand, and revise novels and stories.

Last updated 2026-05-04
Our Take
Sudowrite is the most fiction-focused AI writing tool on the market, with bespoke features like Story Bible, Expand, and a proprietary Muse model trained for narrative. It's a no-brainer for novelists and screenwriters who feel underserved by generic AI chatbots — but if you're writing marketing copy or blog posts, look elsewhere.
Best For
Novelists, fiction writers, and screenwriters — from hobbyists to published authors — who want an AI collaborator for long-form creative writing rather than business or marketing copy.
Platforms
Web
Pros
Purpose-built fiction model (Muse)
Endorsed by bestselling authors
Story Bible covers full novel workflow
Plugins extend to 1,000+ uses
Doesn't train on your writing
Cons
Web-only, no mobile app
Credit-based limits can feel restrictive
Pricier than general AI tools
Not suited for non-fiction work

How It Works

1
Start a project and use Story Bible or Brainstorm to develop your idea, characters, and outline
2
Use Write to generate the next 300 words in your voice when you're stuck, or Expand to flesh out rushed scenes
3
Revise with Rewrite to refine sentences, get word alternates, and adjust tone or style
4
Get Feedback on drafts and use Visualize or Canvas to bring characters and plot points to life

Plans

Hobby & Student
$10/mo
225,000 credits per month
Professional
$22/mo
450,000 credits per month
Max
$44/mo
2,000,000 credits per month

Frequently Asked Questions

Is Sudowrite free to use?
Sudowrite offers a free trial with no credit card required, but ongoing use requires a paid plan starting at $10/month. You can still access your projects after canceling, but AI features require an active subscription.
Does Sudowrite plagiarize or copy other writers' work?
Sudowrite says it generates text one word at a time based on patterns rather than copying verbatim, so plagiarism is extremely unlikely unless you explicitly feed it copyrighted text. They encourage running outputs through plagiarism checkers to verify.
Who owns the writing produced in Sudowrite?
You own everything. Sudowrite explicitly claims no rights over what you put in or what the AI generates for you.
What AI models does Sudowrite use?
Sudowrite uses a mix of Anthropic Claude models, OpenAI models, open source models, and its own in-house fiction model called Muse. These are paired with proprietary narrative processing layers.
Does Sudowrite work for non-fiction or business writing?
Sudowrite is explicitly built for fiction — novels, short stories, and screenplays. While you could technically use it for other writing, its features (Story Bible, character arcs, plot tools) are designed for narrative work.
How much does Sudowrite cost for a typical novelist?
Most novelists will want the Professional plan at $22/month, which includes 450,000 credits — enough for novel-length work. Yearly plans offer up to 50% off.
Does Sudowrite use my writing to train its AI?
No. Sudowrite states they do not use your writing to train their models or OpenAI's models.
What languages does Sudowrite support?
Sudowrite supports 30+ languages for the Write feature, matching your input language. Some other features may fall back on English when the model is uncertain.

Integrations

6 native integrations across 2 categories
Including Underlying AI Models, Community
Underlying AI Models
Anthropic ClaudeOpenAI modelsMuse (in-house fiction model)Open source models
Community
DiscordAffiliate Program

Alternatives to Sudowrite

How Sudowrite fits in: Unlike general-purpose AI writing tools like Jasper or ChatGPT, Sudowrite is purpose-built for fiction with its own narrative-trained Muse model and craft-specific features like Story Bible, Expand, and Canvas.
Jasper
Jasper is an AI marketing platform that uses specialized agents and content pipelines to automate end-to-end marketing workflows while keeping content on-brand at scale.
Copy.ai
Copy.ai is an AI platform that automates go-to-market work like prospecting, content creation, and lead enrichment by stringing together AI-powered workflows across your sales, marketing, and ops teams.
Writesonic
Writesonic tracks how your brand appears in AI search engines like ChatGPT and Gemini, then helps you create and optimize content to improve those rankings.

Try Sudowrite

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