xAI

Acquired

Memphis, Tennessee, United States · Founded 2023

1001-5000 employees · $6B+

Sourced & current · updated Sep 27, 2026Website

AI company founded by Elon Musk in 2023 and maker of the Grok models. SpaceX acquired xAI in February 2026; it now operates as SpaceXAI.

Where they sit

Rapidly scaled AI challenger to OpenAI and Google, with unique distribution via the X platform and now backed by SpaceX's resources

Parent: SpaceX

Subsidiaries