Gemini is a powerful AI model developed by Google. It is designed to be multimodal and capable of understanding and generating various forms of information like text, code, audio, image, and video. Gemini aims to be a versatile AI assistant, helping with tasks such as writing, coding, translating languages, and providing summaries of factual topics. It is available in different versions, each with its strengths and capabilities, making it a flexible tool for various applications.