xAI

Elon Musk's AI company founded in 2023, developing the Grok family of large language models and now merged with SpaceX.

xAI is an artificial intelligence company founded by Elon Musk in 2023 to compete with OpenAI and other frontier AI labs. The company develops the Grok series of large language models, initially integrated with Musk's X platform. In February 2026, xAI merged with SpaceX in a $1.25 trillion combined valuation deal, positioning the company to pursue orbital compute infrastructure alongside its AI development.

Also known as