The creative writing app
for every writer.
Muse Co-Creator is a writing app for novels, screenplays, and short stories. Write with as little or as much AI as you want, check your story for plot holes, and show readers exactly how AI contributed to your project.
See Muse in action.
Take a one-minute tour of Muse Co-Creator.
Meet your Muse writing tools.
Muse is the novel writing software that keeps your creative process flowing.
Flexible Tool Options
Muse offers six levels of tool assistance, from spellcheck to full AI co-writing. Dial it up or down at any time depending on what your story needs.
Customizable AI involvement.
Every writer's process is different. Some want to prove they didn't use AI, but others are excited to embrace its potential.
What we believe.
Muse is built on the conviction that great stories come from real people. Technology should amplify, not replace, the creative voice.
Your Story, Unlocked
Everyone has a story worth telling. Even if you don’t have years of writing experience or hours of free time, Muse can help you turn messy ideas, memories, and notes into novels, screenplays, and more.
Transparent about AI usage.
Every Muse project tracks its AI involvement so you and your fans know exactly how AI contributed.
Storyboard Score
Shows how much of your story's characters, settings, and plot came from you, how much from Muse AI, and how much Muse can't verify either way.
Manuscript Score
Shows how much of the text was written by you, how much came from Muse AI, and how much Muse can't verify either way.
Choose your plan
Every plan includes the full Muse writing environment. Higher tiers unlock more powerful AI tools.
Spark
Free
Spelling and grammar checks, creative prompts, and optional sentence suggestions. Up to AI Level 3.
- AI Levels 0–3 (Solo → Copilot)
- Unlimited projects
- Full manuscript editor
- Storyboard outlining
- Linked storyboard characters & settings in manuscript
- Audio studio with transcription
- Unlimited Muse Reader sharing, gifting, & EPUB downloads
Craft
Free
Everything in Spark, plus Collaborator mode for rewriting, editing, and refining your work with AI.
- Everything in Spark
- AI Level 4 — Collaborator
- Rewrite, expand, or shift tone
- Edit any text via instruction
- Detect logic gaps in outlines & drafts
- Auto-update story outline & sections on character/setting edits
- Writing profile integration
Scribe
POPULARFree
Everything in Craft, plus Ghostwriter mode for generating full drafts, characters, and storyboards from prompts.
- Everything in Craft
- AI Level 5 — Ghostwriter
- Generate characters & settings via chat
- Generate storyboard outline via chat
- Draft full sections from outline