Connect
One click and a sign-in, that's the whole setup
Bring your own AI · Pro desk unlocks connect
One click and a sign-in, that's the whole setup
Say what you want, your agent writes into CoAuthor
Use Typewriter and write a harbour memoir. Chapters, bible, and a jacket I can Accept.
Accept the draft — cover, ebook, Word, print

Sudowrite, NovelAI and the other tools charge AI credits for every request. When you already have Claude or ChatGPT, paying for a second AI subscription makes no sense.
* AI writing store *
or the DIY route:
* bring your own agent *
Everything your book needs to be real, included from the moment you connect.
Normally chat dumps into Docs. Here chapters land in CoAuthor — binder, bible, and Accept — tested before you keep a line.
My memoir needs chapters and a character bible.
Elsewhere a weekend of Canva and export plugins. Here every Accept can move toward jacket, ebook, Word, and print from the same desk.
Ready the jacket and ebook

Sign in once. The manuscript lives on Typewriter. Export anytime — we don't train on your pages.
Sign in once. Export anytime. We don’t train on your pages.
Continue with emailOpen the deskBible, map, languages, and continuity on the desk. Not a plugin sold after you draft.
CoAuthor runs on the Claude or ChatGPT plan you already pay for. Typewriter tokens stay as backup when a plan hits a limit.
Draft chapter 4. Use the model I already pay for.
Covers, Instant Ebook, formats, print paths — your agent picks them up mid-conversation while you stay in chat.
Typewriter Cloud lets you bring Claude or ChatGPT into CoAuthor. Connect the plan you already pay for, keep working in that chat, and drafts land as propose-only chapters on the Typewriter desk — bible, cover, and export included.
Pro unlocks connect for brought AI plans, more monthly tokens as backup, and the same Instant / Editor desk as Free. Bring Claude or ChatGPT — we don't charge a second AI subscription for those messages.
No. Connect once, then ask in the chat you already use. CoAuthor stays the book desk: Accept, Reject, or Talk — your agent doesn't overwrite without you.
On Typewriter. We never use your content to train models. Export ebook, Word, or print whenever you want.
Stack fallbacks in Settings → Models. Hosted Typewriter tokens pick up so the book keeps moving.
Open the desk and tell us what you need. Teams, agencies, and bigger setups are handled by a person, not a form.