harness vs highlight ai
Highlight is a free desktop assistant for mac and windows that pulls context from across your computer: what's on screen, meeting audio, and integrations with gmail, slack, linear, and notion. It writes and edits inside any app, takes meeting notes automatically, and responds to voice.
The trade is scope for exposure: whole-computer context means the assistant sees your whole computer, processed in the cloud. Harness inverts that: you explicitly share a tab, window, or screen, the reading happens on your device, and only a focused slice of the relevant region leaves when you ask something.
side by side
| harness | highlight ai | |
|---|---|---|
| runs on | any chromium browser (chrome, brave, arc, edge), no install | desktop app (mac, windows) |
| screen reading happens | on your device; a question sends only a focused slice of the relevant region | in the cloud; context captured across your apps |
| what it sees | the tab, window, or screen you explicitly share | every app you use, plus meeting audio |
| watching over time | yes: watches and flags the moment it happens, keeps working after you close the window | meeting capture and notes; not a watch-this-and-flag-me monitor |
| memory of your screen | on-device searchable visual memory plus learned preferences, wipeable | chat memory and meeting history |
| acting on it | yes: drafts, documents, spreadsheets, decks, images | writing and editing in apps, meeting notes, tasks, app integrations |
| pricing | free tier; pay-as-you-go credit; resident $7.99/mo | free |
pick highlight if
- you want automatic meeting notes and action items across zoom, meet, and teams
- deep integrations with gmail, slack, linear, and notion matter more than screen privacy
- you want voice control of your desktop
pick harness if
- you want to choose what the AI sees, share by share, instead of granting your whole computer
- you want the reading itself to happen on your device
- you want watches, a searchable visual memory of your screen, and produced artifacts (docs, sheets, decks)
New to the category? Start with what is screen-aware AI? or see the full 2026 roundup. Harness is free to try, in the browser, no install: tryharness.ai.