Ask in the command bar
Ask in Rio's command bar sends a question to ChatGPT, Claude or Grok. Press Cmd+T, type the question and pick the Ask row. Rio opens the assistant's site in a tab with your text as the first message. ChatGPT is the default. Rio is a free, open-source Chromium browser for Mac.

A question without leaving the keyboard
You are halfway through an email and want a second opinion on how to turn down a meeting. Press Cmd+T and type how do I decline a meeting politely. Below the open tabs and the search row sits Ask ChatGPT. Arrow down to it and press Return. ChatGPT opens in a tab with your question as the first message, and your email is one tab away.
Picking your assistant
- The menu on the Ask row lists Grok, ChatGPT and Claude. Pick one with the pointer, or press Option+Down on the row. Your pick stays until you change it.
- One question to another assistant. Type its name, such as claude, or at least its first four letters, and press Tab. The bar switches to that assistant's prompt. Type the question and press Return.
- When the row shows. It appears for anything you type that is not an address, even a single word.
What Rio sends, and where
Rio opens the assistant's own website with your text in the address: chatgpt.com, claude.ai or grok.com. You use the assistant there as you always do, signed in to your own account, under that service's terms.
Rio itself has no account, no API key and no AI server. Your question goes to the assistant only when you choose the Ask row. While you type, the text goes to your search engine for suggestions, as in any browser, and to nothing else.
Rio's other AI features
Ask sits in Settings, AI features, next to features that run on your Mac:
- Tidy Tabs sorts a long Today list by topic.
- Tidy Titles gives pinned tabs short names.
- Tidy Downloads renames files called download.pdf.
- Hover Previews summarize a link before you open it.
Those use Apple's on-device model where your Mac has it. Each one has its own switch, and Ask in the Command Bar is on by default.
Questions
Which assistants can Ask open?
ChatGPT, Claude and Grok. ChatGPT is the default. Pick another with the menu on the Ask row, and Rio remembers your pick.
Do I need an API key?
No. Ask opens the assistant's own website in a tab, chatgpt.com, claude.ai or grok.com, so you use it as you always do, with your own account there.
How do I ask a different assistant just once?
Type its name, or at least its first four letters, and press Tab. The command bar switches to that assistant's prompt; type your question and press Return.
Can I hide the Ask row?
Yes. Open Settings, AI features, and switch off Ask in the Command Bar.