RedQuill vs SmutWriter
Which AI smut writer to use?
SmutWriter (smutwriter.com) is a writing workspace for authors: an AI co-author that drafts chapters, keeps a Story Bible up to date, and exports your work so you can publish it. RedQuill is built for people who want to live the story: one line becomes a full chapter, you steer it in plain words, step into scenes with Roleplay mode, and read what others wrote.
Use SmutWriter to draft a manuscript you plan to edit and publish.
Use RedQuill to experience your own fantasy, chapter by chapter, without managing a project.
| SmutWriter | RedQuill | |
|---|---|---|
| Free tier | Yes, free daily messages, no sign-up | Yes, free daily quills |
| Paid pricing | Premium $20 a month (its homepage also lists $14.99; check at checkout) | Basic $13, Pro $15, Premium $27 a month; yearly billing costs less |
| Content policy / NSFW | Says it has no filters | Explicit, consensual adult fiction (18+), within public content guidelines |
| Story memory / Lorebook | Story Bible for characters, places and plot | Saved characters reused across stories, plus a Lorebook per story |
| Voice / Audio | See SmutWriter's site | Chapters read aloud by AI voices |
| Privacy / Training | Stories kept in your browser by default, cloud sync on Premium | New stories are Unlisted (link only) by default; set them to Private or Public. RedQuill doesn't train AI models on your stories |
Pick SmutWriter if you are drafting a book or serial to publish, or want to train a writing voice on your own samples.
Pick RedQuill if you want to enjoy your fantasy rather than manage a project, with a full chapter from one line.
RedQuill vs. SmutWriter at a glance
SmutWriter
RedQuillWhat is SmutWriter?
SmutWriter is an uncensored AI writing tool aimed at erotica and romance authors. Its pages call it an "AI smut writer", but it's a different site from aismutwriter.com.
Where SmutWriter is the better choice
SmutWriter is a serious tool for authors. For these jobs, it beats RedQuill.
- Drafting a book to publish. Its workspace, chapter tools and wider choice of export formats are built for people who want to edit a manuscript and put it on Kindle, Patreon or similar sites.
- An AI that edits your project. The co-author can create chapters, update the Story Bible and search across your whole project, with every change offered as a suggestion.
- Bringing in work you already have. Smart Import reads manuscripts, character sheets and world notes, and sorts them into chapters and Story Bible entries.
- Matching your own voice. Beyond its built-in Muses, you can train a custom Muse on your own writing samples.
- Trying it with no account. You can open the site and start writing before you sign up for anything.
Where RedQuill is the better choice
SmutWriter is built for managing a manuscript. RedQuill is built for enjoying the story while it happens.
Made for spicy stories you want to live, not edit
You don't need a project, an outline or a Muse to get going. RedQuill is made for adult fiction, including kinks and power dynamics, within our content guidelines. The spicy level control sets how far each story goes, from slow burn to fully explicit.
One line becomes a full chapter, no project setup
Type "my rival and I get snowed in at a ski lodge" and RedQuill writes a full first chapter in under a minute. Then continue chapter by chapter, steer the next scene in plain words, rewrite any paragraph with AI and keep or undo the change, or fork the story to try another direction without losing the original. You can even illustrate a scene with an AI picture right in the chapter.
Characters and a Lorebook without the paperwork
SmutWriter's Story Bible is great for planning a book. On RedQuill, you save characters once (looks, personality, history, how they talk) and drop them into any story, and each story keeps its own Lorebook so chapter 12 still remembers chapter 2. Learn more in Characters 101.
Step into the scene with Roleplay mode
SmutWriter's Companion Mode is a separate chat. RedQuill's Roleplay mode opens inside any chapter of your story, or from any paragraph while you read. The AI narrates and plays everyone else in the scene. Type what you do or say, or let the story move on its own. A Cast panel tracks where everyone is, what they're wearing, their mood and what they're secretly thinking.
A community library you can fork
RedQuill is also a reading platform. Thousands of public stories are free to read on Discover, and you can fork any of them into your own version. Your own stories are saved to your account and stay private unless you publish them.
What does each one cost?
SmutWriter
Free
$0/mo
Premium
$20/mo
RedQuill
Basic
$13/mo
Pro
$15/mo
Premium
$27/mo
Both are free to start, so it's easy to try each one with the same idea.
How to use both together
- In RedQuill
Find the story in RedQuill.
Start from one line, set the spicy level and read the first few chapters to see if the idea has legs. - In RedQuill
Play the key scenes.
Open Roleplay mode at any chapter to live a moment as one of the characters and find what works. - In RedQuill
Fork to test options.
Fork the story when you want to try another direction without losing the one you have. - In SmutWriter
Draft the book in SmutWriter.
If you decide to turn it into a manuscript to publish, download it as EPUB or PDF (on Premium) and take the premise and characters into SmutWriter's workspace.
Which should you choose?
Choose SmutWriter if you
- Are drafting a book or serial you plan to edit and publish
- Want an AI co-author that manages chapters and a Story Bible
- Want to train a writing voice on your own samples
Choose RedQuill if you
- Want to enjoy your fantasy, not manage a project
- Want a full chapter from one line, then steer in plain words
- Want to step into scenes as a character inside the story
- Want a free library to read and remix other people's stories
For more options, see our best AI for writing erotica and best AI smut generators.
RedQuill vs. SmutWriter FAQ
Is SmutWriter free?
Yes, to start. You get free daily messages with no sign-up. Premium is $20 a month for 100 messages a day and cloud sync.
Is SmutWriter the same as AI Smut Writer?
No. SmutWriter is smutwriter.com. AI Smut Writer is aismutwriter.com, a different site with credit-based plans. The names are close, so check the web address.
Does SmutWriter save my stories?
By default, it keeps your stories in your browser. A free account saves your chats, and Premium adds cloud sync so you can write on any device.
Can I publish stories written with SmutWriter?
SmutWriter says you own what you write with it and can use it commercially. It also says to check each platform's rules on AI-assisted work before you publish.
Is RedQuill free?
Yes, to start. You get free daily quills. Paid plans add more quills and features.
What's the best SmutWriter alternative?
If you want to read and play your story rather than run a writing project, RedQuill is our pick, and it's free to start. For more choices, see our best NSFW AI story generators.
Write the story you actually want
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