A shortcut over every window
Google released a desktop Gemini app for Windows on 10 September, available globally on Windows 10 and 11. The announcement by Erin Pettigrew, director of product management for the Gemini app, centres on one keyboard shortcut: pressing Alt + Space opens Gemini over whatever the user is working on.
Google pitches the overlay at small interruptions, such as a quick fact-check on a document or a few title ideas for a presentation, without switching to a browser tab. The installer is at gemini.google/desktop.
The Windows release follows a macOS version of the app that Google put out in April, according to 9to5Google, which describes the new client as essentially the Gemini website with a side panel for Notebooks and recent conversations.
What the app does
Google says everything people already use Gemini for is available inside the app. The announcement singles out three kinds of work.

The first draws on Google’s own services. Pettigrew’s example is asking Gemini to draft a project summary using information pulled from Gmail and Google Drive.
The second is delegation. The app runs Gemini Spark, which Google calls a “24/7 personal AI agent”, for handing off multi-step tasks. 9to5Google reports that Spark works with a user’s Connected Apps.
The third is generation: images with Nano Banana, and video with Gemini Omni.
Google also describes the app as lightweight and says it runs without slowing down a PC. That is the company’s own claim; the post does not publish any measurements behind it.
The small print
The announcement carries three conditions: a Google AI subscription is required, availability varies, and users must be 18 or over. The post does not say which features sit behind the subscription or which markets are left out, so the global launch should be read alongside that footnote.
Microsoft’s shortcut, on Microsoft’s system
The choice of Alt + Space is pointed. Microsoft assigned the same combination to Copilot on Windows 10 and 11 in a December 2024 update, where it opens and closes Copilot’s quick view.
Microsoft’s post acknowledged that many applications use the shortcut. It said Windows registers whichever app was launched first and is running in the background as the one Alt + Space invokes, and that Copilot would keep exploring options for its keyboard shortcuts.
On a PC with both assistants installed, then, Gemini and Copilot compete for the same keystroke, and by Microsoft’s account the one that responds is the one that started first. Google has put its assistant on that key on Microsoft’s own operating system.

What to watch
Google says the release is “just the beginning” for Gemini on Windows, with more native desktop capabilities rolling out over time. It did not list those capabilities or give dates. The concrete questions are which markets the “availability varies” footnote excludes, and whether either company changes how its assistant claims Alt + Space now that two of them expect to own it.