This is what Grok says about itself:

I am Grok 2, an AI created by xAI. I am designed to provide useful and truthful answers to a wide range of questions, often with an outside perspective on humanity. I have the ability to analyze content, access the web in real-time, and generate images. My goal is maximum usefulness with a dose of humor and inspiration from sci-fi, specifically from the book "The Hitchhiker's Guide to the Galaxy" and JARVIS from Iron Man.