Google’s Gemini AI has surged past ChatGPT in the App Store, attracting 13 million users within just four days and achieving a remarkable 1,291% revenue increase. Key features like the viral Nano Banana image generator and enhanced capabilities from the September update, including the Deep Think reasoning engine and expanded multimodal support, contribute to its rapid popularity. Experts believe this could reshape AI competition, pressuring rivals to innovate amid rising user expectations and ethical concerns surrounding AI use.