Which model is CoAuthor?

You don’t pick one. The desk routes the job. We don’t discuss providers or model names in chat.

Can I @ people and chapters?

Yes. Type a name, or @ cast, places, and chapters when you want to be precise. Selection is already in context.

Updated Aug 30, 2026

CoAuthor

A writing partner in the dock. It reads the open chapter, bible, and outline — then knocks.

Chapter 12

The Harbor

Mira stood under the platform light. The train was late again. She almost texted Jonah — then put the phone away.

The platform smelled like wet iron. She counted the tiles between her boots and the yellow line — something to do with her hands that wasn’t the phone.

She left without looking back.

She almost turned. Rain hit the tracks. She walked.

…

CoAuthorJust talk

CoAuthorJust talk

CoAuthor is Typewriter’s writing partner in the dock. It already sees your open chapter, any selection, bible, and outline. Ask in plain language. Every prose change is a proposal you Accept or Reject. It never silently overwrites. No model pickers in the dock — just talk. Credits are a dollar wallet (signup includes $5). Writing stays free when credits run out.

1
Open the dock
CoAuthor on the right (⌘J). Empty chat has starter chips.
2
Ask in English
Keep writing, next beat, what’s weak, research this, continuity pass, add to bible.
3
Accept or Reject
Drafts land as proposal cards on the page. Nothing is in the manuscript until you Accept.

Questions

Which model is CoAuthor?: You don’t pick one. The desk routes the job. We don’t discuss providers or model names in chat.
Can I @ people and chapters?: Yes. Type a name, or @ cast, places, and chapters when you want to be precise. Selection is already in context.

Stuck on a bug or billing? Sign in and use Need help? — or ask CoAuthor on the desk. It reads these pages.