Grok is an AI chatbot from xAI, now part of SpaceXAI, that chats, searches the web and X in real time, reasons through hard problems and generates images and video. It runs on grok.com, inside X, and in iOS and Android apps, with voice mode and a Grok Bot agent product for autonomous tasks. It is used by X users, developers and people who want fewer content restrictions and live social context. Grok models are also available to developers through the xAI API, which supports remote MCP tools.