xAI

About xAI

xAI builds AI systems to understand the universe, offering frontier models like Grok 4.5 for reasoning, code, voice, images, and video through a unified API.

xAI's mission is to accelerate human scientific discovery by building AI that understands the universe. The company develops frontier reasoning models, real-time voice, and generative media capabilities, all accessible via a single unified API. Key products include Grok 4.5, the Colossus supercluster with 200K GPUs, and the Voice API. xAI serves developers, businesses, and governments with usage-based pricing and enterprise support.