Write your book by chatting with ChatGPT.
Built&Written for OpenAI Apps gives ChatGPT a persistent book project with chapters, voice and KDP-ready export — so the book grows beyond a single chat window.
Already on Claude? Use it today →
Can you write a 200-page book on customer success with me?
Yes — I’ll create the book in your Built&Written project and draft 12 chapters. Generation runs in the background.
- Claude.ai
- Claude Desktop
- Cursor
- Cline
- Continue.dev
- ChatGPT (OpenAI Apps)soon
Standard MCP server — connect Built&Written to any MCP-compatible AI client.
Can ChatGPT write a whole book? Not alone — but with a persistent project, yes.
ChatGPT's chat window forgets. Built&Written gives ChatGPT a real book project with chapters, voice and export — so writing a 200-page non-fiction book stops being a chat-window problem.
Persistent project
Your book lives outside the ChatGPT chat. Chapters, outline and edits survive sessions.
Structure-aware generation
ChatGPT reads your outline and surrounding chapters before writing — so chapter 7 stays consistent with chapter 1.
Voice consistency
Train Built&Written on your writing samples once. Every generated chapter stays on your voice.
You can write your book in Built&Written today.
The ChatGPT app is on the way. You don’t have to wait — Built&Written’s editor, voice profile and KDP export work right now, and the same book project will be ready the day ChatGPT integration lands.
- Outline a book from notes
- Generate chapters in the background
- Train Built&Written on your voice
- Export print-ready KDP PDF
- Cover designer included
- EPUB and DOCX export
Writing a book with ChatGPT — answered.
Yes — ChatGPT can write a book when it has a persistent project to write into. Built&Written for OpenAI Apps gives ChatGPT a real book structure with chapters, voice profile and KDP export, so the book grows beyond a single chat window.
Create a Built&Written account, install the ChatGPT app, then ask ChatGPT to outline your book. ChatGPT calls Built&Written's tools to save the outline and generate chapters into a persistent project.
Yes — Built&Written ships as a ChatGPT app via the OpenAI Apps SDK. Install once and ask ChatGPT to outline, draft or revise your book.
ChatGPT's chat window is bounded. Built&Written gives ChatGPT a persistent project, so chapter-to-chapter continuity, voice and structure survive across sessions.
Both work with Built&Written. Claude tends to produce more on-voice long-form drafts; ChatGPT is faster for short revisions. Either way, your book lives in your Built&Written project.
Yes — when paired with Built&Written, the book lives outside the chat window. ChatGPT writes chapter by chapter into your persistent project, so length is bounded by your plan, not by the chat.
Yes — via Built&Written. Print-ready PDF, EPUB and DOCX, KDP-compliant trim sizes.
Yes — OpenAI Apps require a ChatGPT Plus, Team or Enterprise plan.
Yes. Your book is stored in your Built&Written account. ChatGPT reads only the chapters or content you ask it to.
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Be first when ChatGPT can write your book.
We’ll email you the moment the OpenAI Apps integration is live.