Sudowrite

Sudowrite is an AI writing app for fiction that helps novelists and screenwriters brainstorm, outline, draft, expand and revise stories with tools tuned for character, plot and voice.

What is Sudowrite?

Sudowrite is an AI writing app made specifically for fiction. Rather than a general chatbot, it is a long-form editor with tools that understand characters, plot, pacing and voice, helping novelists, screenwriters and hobby writers move from a rough idea to a full draft and then revise it. The company was founded by writers Amit Gupta and James Yu.

Sudowrite runs on a mix of models, including its own fiction-focused Muse and Ballad models alongside models from Anthropic, OpenAI and open-source projects. The company says it claims no rights over your writing and does not use your work to train AI models.

Key Features of Sudowrite

Write, Expand and Describe

Write suggests the next few hundred words based on your characters, tone and plot, with several options to choose from. Expand fleshes out scenes that feel rushed, and Describe adds sensory detail without bogging down the story.

Story Bible

Story Bible guides you step by step from a premise to an outline, chapter beats and drafted prose in your own style, keeping track of characters and worldbuilding along the way.

Rewrite and Feedback

Rewrite produces alternative versions of a passage based on your direction, while Feedback reads a section and points to concrete areas to improve. Higher plans add developmental edits, line edits and simulated beta reads.

Brainstorm and Canvas

Brainstorm generates names, titles, objects and plot ideas and learns from the ones you like. Canvas is a visual space for exploring plot points, character secrets and twists.

Chat and Plugins

A chat assistant built for novelists can answer questions about your manuscript and, if you allow it, make edits. A plugin library adds community-made tools such as reader simulation or novel-to-screenplay conversion.

Comfortable writing environment

The editor offers several themes, dark modes and a focus mode, and organises drafts and chapters in projects. It can work with text in many languages, though some features may fall back to English.

Sudowrite Pricing

Sudowrite runs on monthly credit allowances and offers a free trial with no credit card. The prices below are as shown on the pricing page's default view; the page has a monthly/yearly switch and advertises up to 50% off for yearly billing, so confirm which billing period applies when you check out.

Sudowrite highlights an easy cancellation policy, and projects remain accessible after cancelling, although AI features need a paid plan.

Prices checked on October 27, 2026; check the official pricing page for current plans.

Who Should Use Sudowrite?

• Novelists who want help drafting, expanding and revising long manuscripts.
• Series authors who need continuity across books.
• Screenwriters and fan-fiction writers looking for brainstorming support.
• Students and hobby writers working through writer's block.

Is Sudowrite Worth It?

For fiction writers, Sudowrite is one of the most specialised AI tools available. Its features are designed around storytelling rather than marketing copy, and Story Bible, Expand and the editing tools fit naturally into a novelist's workflow. The privacy stance on not training on your writing will matter to many authors.

It is not without drawbacks. Credits can run out quickly if you generate large amounts of prose, and the deeper editorial features are reserved for the Professional and Max plans. AI-generated text still needs careful editing to sound like you, and writers who simply want a grammar checker or a general assistant will find it more than they need. If you write fiction regularly, the free trial is a low-risk way to see whether it suits your process. Visit the official Sudowrite pricing page for current plans.