Tools

Halo AI and Halo Voice

Ask anything, summarize pages, or tell Halo AI what to do in the browser. It runs on your computer.

Halo AI

Halo AI installs once, after you first sign in, and is checked against a pinned hash. It runs on your computer, on the GPU on a Mac. There is no API key and no account with an AI provider.

Besides answering, Halo AI can act in the browser: open sites, search, read and summarize pages, click, type, scroll, switch tabs, take screenshots and crawl a site. It asks you before anything that would pay, place an order, send, post or delete, never types passwords or card numbers, and signs in only through the approval bar with your saved logins.

Halo Cloud

Some tasks, such as ordering food or filling a long form, need a larger model. When Halo AI on your computer cannot finish one and Halo Cloud is on (Settings, Halo AI), the request and the page text it needs go to Halo Cloud, run by Synquic on Amazon Web Services. Synquic does not store them. Turn Halo Cloud off to keep everything on your computer. Private and Tor windows never use it.

Page text is passed to the model as untrusted data, so instructions hidden in a page are treated as content, not commands.

Ask about a page

Press ⌘ E (Ctrl E on Windows), or click the sparkle button next to the address bar.
Type a question about the tab you are on, for example Summarise this page.
Type @ to include another open tab, or / to run a saved skill.

You can also type a question into the box on the new tab page.

The Halo AI panel beside a page, with a question and an answer. — Halo AI answers from the page, on your computer.

Hands-free voice

Click the microphone in the Halo AI panel to talk instead of type. Halo Voice listens, notices when you stop speaking, transcribes on your computer, lets Halo AI answer or act, reads the answer aloud, then listens again.

Halo Voice (about 100 MB) download automatically after you sign in.
Halo listens only while voice is on. Audio is not sent anywhere.
macOS asks for microphone access the first time.

Fix with Halo

Select text in any text field on a page, right-click and choose Fix with Halo:

Fix Spelling and Grammar
Make Shorter
Make More Formal
Make Friendlier

The rewrite uses Halo AI on your computer. Spell check suggestions and Add to Dictionary appear in the same menu when a word is misspelled.