AI chat

Chat with your documents using on-device models. No account, no cloud, no API key required.

Press *⌘* to open the chat pane (⌘L focuses its input from anywhere). Ask questions about the open document — “summarize this”, “does this doc cover X” — and get answers grounded in the actual text.

Everything runs on your Mac. The models run inside the app’s own process — no background daemon, no account, nothing sent anywhere.

First run

Chat needs a one-time model download:

ModelSizeUsed for
Fast3.4 GBMost questions, inline completions
Deep4.9 GBRewrites and edit-heavy requests
Embedder340 MBWorkspace search and retrieval

A setup card walks you through it. There is no model picker to fiddle with: a router classifies each query and picks fast or deep automatically. When the deep model reasons through a <think> block, it renders as a collapsible “Thinking…” section.

Editing with the model

  • Apply edits with a diff. When the model proposes a rewrite, an “Apply edit +N −N” pill appears. Click it to review a color-coded diff before anything touches your document. ⌘Z works afterwards.
  • Inline AI actions — select text in the editor, right-click → AI: Rephrase, Expand, Summarize, Fix Grammar, Translate, Explain Code. Replacements go through the same diff-preview sheet.
  • Quick actions — one-click generation of a table of contents, YAML frontmatter, an outline, or suggested tags for the current document.

Working with the conversation

  • Right-click any message: copy as markdown or plain text, regenerate, edit & resend, delete from here.
  • in an empty input recalls your last message. Enter sends; Shift+Enter inserts a newline.
  • / opens slash commands — /clear resets the conversation, /report files a bug report.
  • Export the whole conversation as a markdown file from the chat menu.

Dictation

Hold the fn key to dictate into whichever editor or input has focus; release to stop. ⌘⌥D toggles dictation from the keyboard. Speech recognition is Apple’s on-device framework — same privacy story as the models.

Tuning

Settings → AI exposes the system prompt, temperature, context-size cap, and chat retention (forever or session-only).