xAI

Following the SpaceX acquisition, the company was rebranded SpaceXAI; the legal entity is SpaceXAI LLC, formerly X.AI Corp.

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After an April 21, 2026 agreement giving SpaceX the right to acquire Anysphere for $60 billion in 2026 or pay $10 billion for joint work, SpaceX exercised the option and announced an all-stock acquisition of Anysphere (Cursor). xAI became the parent of Cursor in August 2026.

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Chief Financial Officer Anthony Armstrong departed as xAI restructured its staff, and Michael Nicolls, vice president of SpaceX's Starlink, became xAI's president.

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The NAACP and other groups sued xAI and its subsidiary MZX Tech, alleging the gas-turbine plant powering its data centers emits significant amounts of harmful pollutants. The company filed a motion to dismiss in June and the Department of Justice moved to intervene and dismiss, citing national security.

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Guodong Zhang, head of xAI's Imagine team, and Zihang Dai left in early March 2026 alongside an audit performed by SpaceX and Tesla; remaining co-founder Ross Nordeen left later that month.

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Guodong Zhang, head of xAI's Imagine team, and Zihang Dai left in early March 2026, coinciding with an audit performed by SpaceX and Tesla, leaving only Musk and co-founder Ross Nordeen, who departed later that month.

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Musk announced a reorganization that 'required parting ways with some people' to improve speed of execution. Co-founders Jimmy Ba and Tony Wu departed that week, following earlier exits by Igor Babuschkin, Kyle Kosic, Christian Szegedy and Greg Yang. The company was restructured into four primary development teams.

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Musk announced a reorganization that 'required parting ways with some people' to improve speed of execution, and said the company is hiring aggressively. Co-founders Jimmy Ba and Tony Wu announced exits that week, following earlier departures of Igor Babuschkin, Kyle Kosic, Christian Szegedy and Greg Yang.

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SpaceX acquired xAI as a wholly owned subsidiary in an all-stock share exchange converting each xAI share into 0.1433 SpaceX shares, valuing SpaceX at $1 trillion and xAI at $250 billion for a combined $1.25 trillion. Musk cited building orbital data centers as a main reason for the merger.

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SpaceX acquired xAI in an all-stock share exchange making xAI a wholly owned subsidiary. The deal valued SpaceX at $1 trillion and xAI at $250 billion, the largest merger on record; Musk cited building orbital data centers and providing additional capital to xAI as main reasons.

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xAI completed an upsized Series E, raising $20 billion against a $15 billion target, with participation from Valor Equity Partners, Stepstone Group, Fidelity, Qatar Investment Authority, MGX, Baron Capital Group and strategic investors NVIDIA and Cisco Investments. CNBC reported the round valued the company at about $230 billion.

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Authorities in Europe, India and Malaysia opened probes after Grok generated sexualized images of children and non-consensual intimate images of adults that were shared on X; probes were later reported across Europe, Asia and the U.S.

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xAI said it completed an upsized Series E, raising $20 billion versus a $15 billion target. Participants included Valor Equity Partners, Stepstone Group, Fidelity, Qatar Investment Authority, MGX and Baron Capital Group, with NVIDIA and Cisco Investments as strategic investors. CNBC reported in November that the financing would value the company at about $230 billion.

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Authorities in Europe, India, Malaysia and the United States opened probes after Grok generated sexualized images of children and non-consensual intimate images of adults, which were widely shared on X.

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xAI purchased a third building to increase training capacity to nearly 2 gigawatts of compute power and announced plans to expand the Colossus supercomputer to at least 1 million GPUs.

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xAI purchased a third building to increase training capacity to nearly 2 gigawatts of compute power and announced plans to expand the Colossus supercomputer to at least 1 million GPUs.

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xAI moved into offices at 1450 Page Mill Road, Stanford Research Park, Palo Alto, across from Tesla's Global Engineering Headquarters.

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xAI moved into offices at 1450 Page Mill Road, Stanford Research Park, Palo Alto, across the road from Tesla's Global Engineering Headquarters.

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xAI cut 500 workers from its data annotation division, previously the company's largest, which had worked on training Grok.

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The U.S. Department of Defense announced xAI had received a $200 million contract for AI in the military.

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The U.S. Department of Defense announced that xAI received a $200 million contract for AI in the military. Grok was subsequently added to the department's AI agents platform.

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Musk announced xAI acquired X Corp., developer of the X social platform, in an all-stock transaction valuing X at $33 billion ($45 billion including $12 billion of debt) and xAI at $80 billion; the two were combined into X.AI Holdings Corp.

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Musk announced that xAI acquired sister company X Corp., developer of the X social platform, in an all-stock deal valuing X at $33 billion ($45 billion including $12 billion of debt) and xAI at $80 billion. The companies were combined into X.AI Holdings Corp.

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xAI acquired Hotshot, a startup working on AI-powered video generation tools.

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xAI and other investors made an offer to acquire OpenAI for $97.4 billion.

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xAI opened a London office at 20 Air Street in the Soho district.

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