Overview
xAI develops the Grok models and assistant. SpaceX acquired X.AI Holdings Corp. effective 2 February 2026, and xAI had itself acquired X Holdings, owner of the X social network, effective 28 March 2025[9]. SpaceX now reports an AI segment comprising AI compute, Grok and X; in 2025 that segment generated revenue of US$3.20 billion and an operating loss of US$6.36 billion, and in the first quarter of 2026 revenue of US$818 million[9]. Capital expenditure attributed to the AI segment was US$12.7 billion in 2025[9]. SpaceX reports about 550 million monthly active AI users across Grok and X as of March 2026[9]. In 2023 and 2024 nearly all AI-segment revenue came from X advertising, subscriptions and data licensing, so the segment figure is not a measure of model revenue alone[9]. SpaceX also acquired Cursor, the AI coding editor, in August 2026[59].
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xAI (SpaceX AI segment) alternatives and competitors
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