Reasoning effort

The whole family working together: a message, a pause, a streamed reply.

Dropdown select with composable trigger, content, and item components.

Parallel workers with their own progress, models, and completions.

A unified diff with tinted additions and removals, sized for chat.

Files as received rather than staged: an image to open, a document with its page count.

Shared design language for the elements family: surface, ink, and motion class recipes plus the shimmer utility.

Everything the app can do, one keystroke away and grouped by where it acts.

A user bubble and a streaming assistant reply, with actions that appear on hover.