Sudowrite is an AI writing tool designed with fiction and other creative works in mind. Instead of a typical productivity app, science fiction authors built it to be more of a writing partner, encouraging collaboration and idea generation. Unlike many AI tools geared for short marketing content, Sudowrite assists novelists and short story writers with the deeper aspects of writing: composing extended scenes, monitoring characters, and developing compelling story arcs.
Sudowrite uses a combination of general-purpose AI models (GPT-5 and Claude 4.1) alongside Muse 1.5, its proprietary fiction-optimized model. It gives you a platform that writes, helps you build your world, keeps your story on track, and manages your whole manuscript.
Key Features
- Write: Analyze the tone, plot, and characters by writing a piece of up to 2,000 words in your own style.
- Develop: Add details to brief or incomplete scenes to enhance pacing.
- Rephrase: Modify sentences or excerpts using varied stylistic approaches.
- Feedback: Highlights three specific areas in any draft that can be improved.
- Describe: Add scene-setting details with speed and clarity.
- Canvas: Organize story arcs, themes, and character development on a single canvas.
- Brainstorm: Produce a limitless supply of names, titles, or creative prompts, evolving with your choices.
- Visualize: Transform your character sheets and worldbuilding notes into AI-generated artwork.
- Google Docs Integration: Write directly in Google Docs via the Chrome extension.
Plugin Ecosystem
Sudowrite supports a growing library of over 1,000 plugins built by both the team and its community. These plugins expand the writing process with tools for editing, analysis, feedback, and creativity. Examples include:
- Analyzing prose with Hemingway’s rules
- Talking directly to your characters
- Generating query letters or marketing copy
- Increasing intensity in a passage (“turn up the heat”)
Plugins are accessible with one click, functioning as customizable buttons inside Sudowrite’s interface. Authors can also build their own plugins without coding, or fine-tune advanced setups using Story Bible details, model selection, or multi-stage instructions. Free live classes are held regularly to help users design and share plugins, making the system both a writing toolkit and a collaborative community resource.
Recent Improvements
- Chat with Context: Redesigned chat with full history, referencing your draft, Story Bible, and highlights. Supports @tagging characters, worldbuilding elements, or documents.
- Better Imports & Exports: Import full manuscripts and auto-split chapters, or export an entire project into a single .docx file.
- New AI Models: Claude 4.1 Opus (handles entire manuscripts, strong multilingual support) and GPT-5 (Mini, Nano, full). Sudowrite’s Muse 1.5 model is tuned for fiction.
- Chapter Continuity: Link chapters together to maintain narrative flow.
- POV & Tense Controls: Dedicated selectors for narrative perspective and tense.
- Story Bible Detection: Characters and worldbuilding elements are automatically highlighted in scenes.
- Worldbuilding Import/Export: Move entire worldbuilding sections in and out with ease.
- Draft Enhancements: More consistent long drafts, style examples for tailored prose, and extended write generations (up to 2,000 words).
- Project Management: Bulk-delete characters, hide or show elements, and better organize large story bibles.
