Gemini AI is set to enhance its functionalities by taking over Google Assistant's actions on Android devices, as revealed in the latest beta update. This transition allows Gemini to manage tasks such as sending messages, making calls, and controlling music playback directly through the Google app. The upgrade highlights Google's shift towards a multimodal AI experience, moving away from the traditional voice assistant model. While Gemini shows promise, it still faces challenges with large data sets. The integration of Gemini across various Google applications signals a significant advancement in AI capabilities for users.