A press of the fn key is one of the ways to start dictation on a Mac. Google has taken a long press of the same key for Gemini, in any window, on any Mac with the app installed.
What arrives is more than a transcript. Gemini removes the ums and ahs, follows a correction made mid-sentence, and places formatted text at the cursor, inside whatever is open, an email or a supplier contract. Anyone paying a monthly fee for dictation or transcription is now paying for something Google gives away.
A second mode, which Google calls screen-aware reasoning, stays off until the person at the machine turns it on. With it on, Gemini reads what is on the screen, so it can summarize a document someone has highlighted, explain an error message, or rewrite a paragraph inside the app it is in.
Most office workers meet AI in a browser tab, which means copying text out of a document and pasting the reply back in. Holding one key removes that step for anything spoken, and the screen mode removes it for anything on display.
So the assistant is out of its own window and into the work. The model reads whatever is open at that moment, the claims file or the half-finished contract, and the person at the keyboard is the one who decides whether it may.
The feature works in English only for now, and Google is rolling it out to everyone with the Gemini Mac app, at no cost.