Gemini is Google's AI assistant available in multiple forms and platforms. It can be accessed through:

• The Gemini mobile app available on Android devices (sometimes pre-installed) and iOS devices via the App Store, where it serves as a personal AI assistant for writing, planning, brainstorming, and more. On Android, it can replace Google Assistant as the primary assistant if you switch to it. It uses location data for relevant responses.

• Gemini in Chrome, an AI assistant integrated into the Chrome desktop browser on Windows and Mac (currently in the U.S. for certain users), providing AI help based on web page content through the Gemini icon or keyboard shortcuts.

• Features like Gemini Live allow real-time voice conversations and interaction.

In summary, Gemini is a software AI assistant by Google accessible on smartphones (Android and iOS) and desktop browsers (Chrome) rather than a physical location. It is part of Google's AI ecosystem to assist users in productivity and creativity tasks.