Outline a book from a one-line idea, draft new material, or rewrite a passage in a different voice — powered by your own AI provider account.
AI Assist gives you a writing partner inside the editor for the moments you want one: outlining a new book, getting past a blank page, or reworking a passage that isn't landing. It runs on your own AI provider account — OpenAI, Anthropic, Gemini, or OpenRouter — so the choice of model and the cost of generations are entirely yours to control.
Starting a brand-new book? Describe your premise in a sentence or two, optionally add a genre and tone, and generate a full chapter-by-chapter outline. Review it, then apply it to instantly create your book's chapter structure — every chapter titled and ready for you to write into.
From inside a chapter, ask AI Assist to continue naturally from wherever you've stopped — useful for pushing through a stuck moment without losing your own voice, since you can accept, edit, or discard whatever it produces before it becomes part of your manuscript.
Give it a short brief for what the chapter should cover and let it produce a full first draft to revise from — a starting point, not a finished chapter.
Select any text and ask for a rewrite — tighter, a different tone, simplified, or your own custom instruction. The original stays untouched until you decide to accept the new version.
Add your API key from your account settings — it's used only for your own generations and never shared. A small number of free generations are available up front so you can try AI Assist before deciding whether to connect a key.