Elon Musk unites SpaceX and xAI in $1 trillion deal

On Monday, Elon Musk announced that SpaceX has acquired his artificial-intelligence startup, xAI, in a groundbreaking deal that merges his AI and space ventures. The move brings together the rocket-and-satellite company with the creator of the Grok chatbot, uniting two of Musk’s most ambitious projects.

First reported by Reuters last week, the deal is one of the most daring collaborations in the tech industry, combining a space and defense contractor with a rapidly growing AI firm whose operations rely heavily on chips, data centers, and energy.

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Now that Grok4 seems to be such a huge win… pic.twitter.com/uUaPP6RQat

— Chubby♨️ (@kimmonismus) July 5, 2025

It could also strengthen SpaceX’s data-center capabilities as Musk competes with tech giants like Google, Meta, Amazon-backed Anthropic, and OpenAI in the AI space.

The agreement values SpaceX at $1 trillion and xAI at $250 billion, according to sources familiar with the deal.

“This marks not just the next chapter, but the next book in SpaceX and xAI’s mission: scaling to make a sentient sun to understand the Universe and extend the light of consciousness to the stars!” Musk said.

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The purchase of xAI sets a new record for the world’s largest M&A deal, a distinction held for more than 25 years when Vodafone bought Germany’s Mannesmann in a hostile takeover valued at $203 billion in 2000, according to data compiled by LSEG.

The combined company of SpaceX and xAI is expected to price shares at about $527 each, another person familiar with the matter said. SpaceX was already the world’s most valuable privately held company, last valued at $800 billion in a recent insider share sale. xAI was last valued at $230 billion in November, according to the Wall Street Journal.

The merger comes as the space company plans a blockbuster public offering this year that could value it at over $1.5 trillion, two people familiar with the matter said.

SpaceX, xAI and Musk did not immediately respond to requests for comment.

The deal further consolidates Musk’s far-flung business empire and fortunes into a tighter, mutually reinforcing ecosystem – what some investors and analysts informally call the “Muskonomy” – which already includes Tesla, brain-chip maker Neuralink and tunnel firm the Boring Company.

The world’s richest man has a history of merging his ventures. Musk folded social media platform X into xAI through a share swap last year, giving the AI start-up access to the platform’s data and distribution. In 2016, he used Tesla’s stock to buy his solar-energy company SolarCity.

The agreement could draw scrutiny from regulators and investors over governance, valuation and conflicts of interest given Musk’s overlapping leadership roles across multiple firms, as well as the potential movement of engineers, proprietary technology and contracts between entities.

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SpaceX also holds billions of dollars in federal contracts with NASA, the Department of Defense and intelligence agencies, which all have some authority to review M&A transactions for national security and other risks.