Sudowrite is a generation-first tool — it excels at helping writers generate new content, expand scenes, and brainstorm. Written takes a voice-first approach: it starts with what you've already written and helps you improve, deepen, and continue it while keeping your creative voice primary.
If you want AI that generates stories for you, Sudowrite does that well. If you want AI that helps you write your story better — with control over how much AI influence there is and tools to grow your readership — Written is built for that.
Control how much AI shapes each scene — from light edits to full creative expansion.
Save characters, world rules, relationships, and plot threads. Keep your story consistent.
Make your writing sound more natural and human — especially after using AI assistance.
Quote cards, trope tags, preview pages, reader signups — built for growing authors.
Identify text that sounds AI-generated and improve its natural voice.
Change tone, length, and style of any scene without losing core meaning.
Try Written Free
Fiction writing with memory, voice control, and BookTok tools — all in one place.
Sudowrite is a writing tool. Written is a writing tool and an author growth platform. Once you're writing your story, Written's BookTok tools help you build your audience — preview chapters, trope tags, quote cards, reader signups, and BookTok captions. No other fiction AI tool has this.
From first sentence to first fanbase — all in one studio.