Sudowrite

What is Sudowrite?

Sudowrite is a browser-based AI writing partner made for fiction. It helps you plan, draft and revise a novel or screenplay, with tools that write the next few hundred words, rewrite a passage on your instructions, add sensory description or expand a rushed scene. The homepage pitches it as a non-judgemental partner that helps you write your novel faster, and the editor lives at editor.sudowrite.com with Google sign-in.

The product was founded by writers Amit Gupta and James Yu, and the company says its investors include founders of Medium, Twitter, Gumroad and WordPress. Beyond general-purpose models, Sudowrite runs Muse, a model it says was built just for fiction, and Ballad, and the pricing page mentions access to more than 30 other models. The service is live in October 2026, sold on three subscription tiers with a free trial.

Key Features

• Story Bible: Story Bible takes a project from a first idea through outline, chapter beats and finished prose in your own style. It stores characters, worldbuilding and synopsis details, so later drafting tools can keep the story consistent across chapters.
• Write: Write suggests roughly the next 300 words based on your characters, tone and plot arc. It offers several options at once, so you can pick the closest fit, keep a sentence or two, and discard the rest.
• Rewrite and Expand: Rewrite revises a selected passage according to your direction, such as more tension or a different point of view. Expand builds out scenes that feel rushed, which helps smooth pacing without starting the chapter again.
• Describe: Describe generates sensory detail for a word or phrase, covering sight, sound, smell, taste and touch along with metaphors. Writers use it to add texture to a setting or object without stalling the plot.
• Brainstorm and Canvas: Brainstorm produces lists of names, magic items, titles and plot ideas, and thumbs-up ratings on favourites guide later suggestions. Canvas is a separate planning space for plot points, character secrets, twists and reference material.
• Muse fiction model: Muse is Sudowrite’s own AI model, which the company says was built specifically for fiction, with version 1.5 promoted on the homepage. Plans also include Ballad and access to more than 30 other industry models for comparison.
• Feedback and editing: Feedback reads a draft and returns five areas to improve, and it appears from the Professional plan upward. The Max plan adds developmental edits, line edits and simulated beta reads for authors preparing books for publication.
• Chat and plugins: Sudowrite Chat gives novelists a conversational assistant that can be allowed to edit text directly. Plugins let you simulate readers, talk to characters or turn a novel into a screenplay, and users can build their own.

Pros

• Built for fiction: Sudowrite focuses on storytelling tasks rather than marketing copy, with tools for scenes, description and plot structure. Capterra reviewers single out Brainstorm and Write as strong sources of ideas for fiction projects.
• Keeps your voice and continuity: The Story Bible and style matching help drafted text follow your tone and established story facts. Capterra reviewers say Write and Expand keep tone and plot consistent across paragraphs, which reduces rework.
• No-card free trial: Every plan starts with a free trial that does not ask for a credit card, according to the pricing page. You can therefore test drafting on your own manuscript before deciding whether the subscription is worth paying for.
• Writing stays out of training: Sudowrite states that it does not use your writing to train its own models or OpenAI’s models. That policy matters for authors who worry about unpublished manuscripts feeding a public AI system.
• Easy cancellation: The EZ Cancel Guarantee lets you upgrade, downgrade, pause or cancel from the subscription page. After cancelling you keep access to your projects, although the AI features need a paid plan again.

Cons

• Credits run down quickly: Credit allowances can run out fast on long manuscripts, according to several reviews. Blogging Wizard notes this on a 70,000-word novel, and one Capterra reviewer used their monthly allotment within a week.
• Output needs editing: Generated prose often reads as generic and needs revision to match your own voice. Capterra reviewers say careful editing is required to catch errors, so Sudowrite works best as a drafting aid rather than a finished-text tool.
• Long-book memory gaps: Some reviewers report that Sudowrite loses track of characters and plot details across multi-chapter works. Keeping the Story Bible updated helps, but you should still check continuity yourself before submitting a manuscript.
• Few integrations: Sudowrite runs mainly in its own web editor, and Blogging Wizard describes its integrations as limited. Writers who draft in Scrivener or Word will need to copy text in and out of the editor.
• No permanent free plan: Capterra lists no free version, only a trial, and reviewers call the trial too limited to test the tool properly. Feedback and editorial passes also sit on higher tiers, which raises the effective cost.

Who is Using Sudowrite?

• Novelists: Authors drafting, revising and plotting full-length books across genres.
• Screenwriters: Writers developing scripts or adapting a novel into screenplay form.
• Hobby and student writers: People writing fiction for fun or for school on the entry plan.
• Prolific indie authors: Self-publishers releasing several books a year who need high credit limits.

Pricing

Sudowrite sells three subscription tiers after a free trial, with the official page showing $10, $22 and $44 a month (official prices, October 2026).

The official page advertises up to 50% off on yearly billing, and Blogging Wizard and Capterra list $19, $29 and $59 as the monthly rates, so the lower figures likely reflect annual billing. Reports of the Professional credit allowance also vary between 450,000 and 1,000,000 a month.

Credit limits and plan names change from time to time, so confirm the current figures on Sudowrite’s pricing page before you subscribe.

What Makes Sudowrite Unique?

Sudowrite combines a fiction-specific model, Muse, with a Story Bible that carries characters, outline and style from planning through to prose. Most general AI writers treat each prompt in isolation, whereas Sudowrite’s tools read your project’s established facts before suggesting text. Features such as Describe, simulated beta readers and chapter-level feedback reflect how novelists actually revise, rather than how marketers produce copy.

Compatibilities and Integrations

• Platform: Web editor at editor.sudowrite.com, used in a desktop or mobile browser.
• Sign-in: Email or Google account sign-in.
• AI models: Muse and Ballad fiction models plus access to more than 30 other models.
• Community: Discord community, free live classes, a changelog and a blog for updates.

Sudowrite Tutorials

Getting a first chapter out of Sudowrite takes a short setup in the web editor.

1. Start a free trial at sudowrite.com and sign in with email or Google.
2. Create a project and fill in the Story Bible with a braindump, characters and synopsis.
3. Generate an outline and chapter beats, then edit them until the structure feels right.
4. Draft scenes with Write, then polish passages using Rewrite, Describe and Expand.
5. Run Feedback on a finished chapter and revise against the five suggested areas.

How We Rated It

Summary

Sudowrite suits novelists and screenwriters who want an AI partner for drafting, description and revision rather than a general chatbot. The main limitation is cost on long projects, since credits drain quickly and generated prose still needs careful editing. We rate it highly for fiction depth. Fill in the Story Bible thoroughly before drafting, because richer story context gives noticeably better suggestions and saves credits.