xAI

AI company behind the Grok models, now part of SpaceX

x.aiPalo Alto, United States

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xAI was founded by Elon Musk in March 2023 and is known for the Grok family of chatbots and models. SpaceX acquired it in February 2026, and it has since been renamed SpaceXAI and then SpaceX Super Intelligence. It is based in Palo Alto, California.

Model lines

xAI model families

3 families

Grok

14

models

Grok Imagine

6

models

Grok-build

1

model

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