A Notion or Linear workspace at 100K documents takes a noticeable second to search. The search bar is the most-used surface in the product, and it's getting slower as customers succeed.
The in-browser indexer and filter layer behind global search and @-mention pickers - same UX, fast at any workspace size.
Sub-100ms search at 100K documents, no server hit, and the same dispatch engine drives the activity-feed filter so mention-aware feeds stay instant.
Hadron is not claiming the GPU is fastest. It picks the right backend for each operation. A two-character search prefix routes differently than a six-character one; an @-mention filter takes a different path again. Watch the Dispatch evidence panel beside each app: every keystroke prints which path was chosen, the score, and a one-line reason.