Google has launched Nano Banana 2, an upgraded AI image generation model, across multiple platforms, aiming to enhance user engagement following the success of its predecessor. Nano Banana 2 utilizes Gemini’s Flash models for faster and cost-efficient processing, resulting in sharper image details. The Gemini app now boasts over 750 million monthly active users, reflecting a significant surge after attracting 13 million users within just four days of the original model's release.