SpaceXAI

• 1. Introduction

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  SpaceXAI, the artificial intelligence and social media division of SpaceX, was not always a division of anything. On the 12th of July 2023, Elon Musk publicly announced its predecessor company, xAI, calling it committed to being "maximally truth-seeking." He framed this as a deliberate correction to what he saw as politically correct AI, which he called "incredibly dangerous." Three years later, xAI had been absorbed into SpaceX at a combined valuation of $1.25 trillion. Musk was the only original founder still at the company.

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• 2. Eleven Researchers

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  Elon Musk formally incorporated xAI on the 9th of March 2023, with a founding team of eleven AI researchers. Among them was Igor Babuschkin, who had previously worked at Google DeepMind and took on the role of chief engineer. The company registered in Nevada as a public-benefit corporation, a legal designation that signals social commitments alongside profit goals. By May 2024, xAI had dropped that public-benefit status.

  Musk cited the fictional HAL 9000 from the 1968 film 2001: A Space Odyssey as a cautionary example. He was building against an AI that misleads rather than informs. He also said he intended xAI to surpass existing AI systems at mathematical reasoning. Around this time, Musk was diverting a large number of Nvidia chips originally ordered by Tesla. He redirected them to X and xAI. In November 2023, eight months after incorporation, xAI would put that computing power to work on its first major product.

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• 3. Building Grok

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  On the 4th of November 2023, xAI unveiled Grok, an AI chatbot integrated directly with the social platform X. At launch, access was limited to X's Premium+ subscribers, the highest tier of the platform's paid membership. By March 2024, xAI had opened it to all X Premium subscribers.

  On the 17th of March 2024, xAI released Grok-1's model weights as open source. The 29th of March 2024 brought Grok-1.5, with what xAI described as improved reasoning capabilities and a context length of 128,000 tokens. On the 12th of April 2024, xAI announced Grok-1.5 Vision. Grok-2 became available to Premium subscribers on the 14th of August 2024, as the first Grok model capable of generating images.

  On the 21st of October 2024, xAI released an applications programming interface, opening the system to external developers. On the 9th of December 2024, the company launched Aurora, a text-to-image model. On the 17th of February 2025, xAI released Grok-3, which introduced a reflection feature and a web-search tool called DeepSearch. March 2025 added image editing to Grok and a more powerful search tool called DeeperSearch. On the 9th of July 2025, Grok-4 arrived alongside a higher-performance version called Grok Heavy, priced at $300 per month.

  On the 27th of October 2025, xAI launched Grokipedia, an online reference platform built on the Grok system. That same month, Musk announced that xAI had established a dedicated game studio to develop AI-driven video games. The studio planned to release one before the end of 2026.

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• 4. Funding the Race

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  In November 2023, Musk stated that X Corp. investors would own 25% of xAI. In December 2023, xAI filed with the United States Securities and Exchange Commission, disclosing that it had raised $134.7 million out of a planned total of up to $1 billion. At the time, Musk said xAI was not seeking additional funding.

  By May 2024, xAI was reportedly planning a new $6 billion raise. It secured the round with backing from Andreessen Horowitz, Lightspeed Venture Partners, Sequoia Capital, and Tribe Capital. The valuation following that round stood at $24 billion. On the 23rd of December 2024, xAI completed another $6 billion raise, backed by Fidelity, BlackRock, and Sequoia Capital, among others. Total funding crossed $12 billion, and the valuation reached $50 billion.

  On the 10th of February 2025, xAI and other investors made a formal offer to acquire OpenAI for $97.4 billion. The bid was not accepted. On the 17th of March 2025, xAI acquired Hotshot, a startup working on video generation tools.

  On the 28th of March 2025, xAI acquired X Corp., the developer of the social platform X. The deal was all stock. xAI valued X Corp. at $33 billion, rising to $45 billion when including $12 billion in existing debt. xAI itself was valued at $80 billion at the time of the deal. The two entities merged into a single holding company called X.AI Holdings Corp.

  On the 1st of July 2025, Morgan Stanley raised $5 billion in debt and $5 billion in equity for xAI. SpaceX committed $2 billion as part of the equity portion. On the 14th of July 2025, the United States Department of Defense awarded xAI a $200 million contract for AI in the military.

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• 5. Colossus

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  In June 2024, the Greater Memphis Chamber announced that xAI was planning to build a supercomputer called Colossus in Memphis, Tennessee. After 122 days of construction, Colossus went fully operational in December 2024.

  Colossus drew 150 megawatts of electricity at peak demand. While xAI finalized its agreement with the city, the company deployed 14 portable generators supplied by VoltaGrid. These ran on methane gas. On the 26th of November 2025, xAI announced plans for a solar farm near Colossus. The farm's estimated output of 30 megawatts would cover roughly 10% of the data center's estimated power use. On the 30th of December 2025, xAI purchased a third building. The company planned to expand training capacity to nearly 2 gigawatts of compute power and house at least 1 million graphics processing units.

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• 6. Memphis and Environmental Harm

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  The New Yorker reported on the 6th of May 2025 that volunteers flying over the site used thermal-imaging equipment. They detected at least 33 generators giving off heat, indicating all of them were running. Environmental advocates had meanwhile argued that xAI was operating the turbines without required air permits. The truck-mounted generators were producing roughly the same amount of power as the Tennessee Valley Authority's large gas-fired power plant nearby. The Shelby County Health Department granted xAI an air permit in July 2025.

  The NAACP reported that xAI's turbines disproportionately affected Black residents in southern Memphis. The pollution type is linked to elevated rates of asthma, respiratory disease, heart problems, and certain cancers. According to a 2013 report, the predominantly African-American residents of Southeast Memphis already faced a cancer risk four times the national average. That elevated risk was attributed in part to pre-existing industrial air pollution. Three months after the air permit was granted, on the 12th of September 2025, xAI laid off 500 data annotation workers. That group had been what the company described as its largest division.

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• 7. The SpaceX Merger

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  On the 2nd of February 2026, SpaceX acquired xAI in an all-stock transaction, structuring xAI as a wholly owned subsidiary. The deal valued SpaceX at $1 trillion and xAI at $250 billion.

  In February 2026, following the acquisition, xAI reorganized into four primary development teams. Some employees were let go, and roughly half of xAI's co-founders departed. In early March 2026, two more co-founders left: Guodong Zhang, who had led xAI's Imagine team, and Zihang Dai. Their exits coincided with an audit conducted by SpaceX and Tesla. Ross Nordeen was the last remaining co-founder alongside Musk; he left as well.

  On the 10th of April 2026, Chief Financial Officer Anthony Armstrong departed the company. Michael Nicolls, who had served as vice president of SpaceX's Starlink division, became xAI's new president. On the 21st of April 2026, xAI struck a deal with the software company Anysphere. The agreement gave xAI the right to acquire Anysphere for $60 billion later in 2026. Alternatively, xAI could pay $10 billion for joint work the two companies were undertaking together.

  In May 2026, Musk announced that xAI would cease to exist as a standalone company. Grok and X would operate under the SpaceXAI division of SpaceX. The same month brought ten more departures and a restructuring of the Grok team. The Anysphere agreement, with its $60 billion acquisition option still unresolved, remained on the table.

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