Sudowrite

Sudowrite is a writing app built only for fiction. You set up a Story Bible with your characters, world, synopsis and outline, and it helps you turn that into chapter beats and then scenes. Inside the editor you can ask it to write the next few hundred words, describe a scene with more sensory detail, expand a rushed moment, rewrite a passage or give you editor-style feedback. Its own fiction models, Muse and Ballad, sit alongside Claude and OpenAI models.

Pick it over a general assistant like Claude when you're working on a long book and want the tool to keep track of your characters and plot for you. Claude can match or beat its prose for a lot less money, but you have to manage the story notes and continuity yourself.

The catch: it runs on credits that heavy drafters burn through, the prose can tip into purple and cliché, and long imported manuscripts have caused bugs for some people. Many authors and writing communities are openly hostile to AI fiction, so check the rules of any contest, publisher or group before you use it.

• Novelists
• Self-published authors
• Hobby writers
• Screenwriters

Novelists, self-published authors and hobby fiction writers who want help planning and drafting a long story.

• Story Bible

  Holds your characters, world, synopsis and outline, and turns them into chapter beats and draft scenes.

• Write, Describe, Expand

  Suggests the next few hundred words in your style, adds sensory detail or fleshes out a scene that feels rushed.

• Rewrite and feedback

  Rewrites a passage to your direction, or gives editor-style notes on what to fix.

• Muse and Ballad models

  Sudowrite's own models trained for fiction, plus access to Claude, OpenAI and other models.

• Canvas and Brainstorm

  A space for plotting arcs and themes, and a generator for names, titles and plot ideas.

• Plugins

  Extra tools such as simulated beta readers, chatting with your characters and turning a novel into a screenplay.

• Hobby & Student

  $10/mo billed yearly

  Writing for fun or for class.

  • 225,000 credits a month
  • All writing tools, Story Bible and Muse
  • AI chat for brainstorming and research
• Our pick

  Professional

  $22/mo billed yearly

  Writing a full novel or screenplay.

  • More monthly credits
  • Developmental edits, line edits and beta reads
  • Everything in Hobby & Student

• Max

  $44/mo billed yearly

  Authors publishing several books a year.

  • 2,000,000 credits a month
  • Unused credits roll over for 12 months
  • Everything in Professional

Prices in USD unless noted, checked 21 October 2026. Vendors change plans often, so confirm on their site before you buy.

Ways Sudowrite can slot into your week.

1. 1

   Turn an idea into an outline

   Write a paragraph about your story and let the Story Bible build characters, a synopsis and chapter beats you can edit.

2. 2

   Unstick a scene

   Ask for three takes on the next 300 words, keep the line that works and write on from there.

3. 3

   Add texture

   Highlight a flat paragraph and use Describe to add sights, sounds and smells, then cut back what's too much.

4. 4

   Get notes before an editor

   Run a chapter through feedback or simulated beta readers to catch pacing and clarity problems early.

Use it as your drafting space for fiction. Most authors still finish in Word, Google Docs or Scrivener and use a human editor before publishing.

The closest alternatives to Sudowrite in the library, best rated first.

• DeepL4.2/5· best for Translating Word, PowerPoint and PDF files with layout keptSudowrite vs DeepL
• QuillBot4.1/5· best for rewording a sentence or paragraphSudowrite vs QuillBot

Nobody has reviewed Sudowrite here yet. If you use it, your take helps everyone else choose.