Google Gemini is a family of multimodal AI models developed by Google, designed to understand and generate text, images, audio, video, and code. Gemini is also a chatbot and a planned replacement for Google Assistant. It is designed to be flexible and scalable, running efficiently from data centers to mobile devices. The models come in different sizes, including Ultra, Pro, Flash, and Nano, each optimized for different tasks and devices. Gemini is integrated into Google products like Search, Gmail, and Workspace, with developers able to access it via the Gemini API. Google has also incorporated Gemini into its Pixel phones.