The story of xAI

Artificial-intelligence company that The Irish Times calls Elon Musk’s AI startup; acquired by SpaceX in February 2026.

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xAI. Artificial-intelligence company that The Irish Times calls Elon Musk’s AI startup; acquired by SpaceX in February 2026.

23 Dec 2024

BlackRock invested in xAI.

xAI names BlackRock among the investors in its $6 billion Series C round. It does not say which BlackRock funds took part or how much.

19 Mar 2025

XAI, member of AI Infrastructure Partnership.

Announced on 19 March 2025 by BlackRock, Global Infrastructure Partners, Microsoft and MGX.

2 Feb 2026

Elon Musk owns a stake in xAI.

The Irish Times calls xAI “his AI startup”. The size of any stake is not given here.

SpaceX acquired xAI.

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Drawn from the sourced links on xAI. Change a link and this story changes with it.

Pictures, from Wikimedia Commons: BlackRock, Dazzling4, CC BY-SA 4.0; Elon Musk, Gage Skidmore, CC BY-SA 4.0; SpaceX, Bruno Sanchez-Andrade Nuño from Washington, DC, USA, CC BY 2.0.