TL;DR
SpaceX exercised its option to buy Anysphere, maker of Cursor, for $60 billion in stock. The confirmed deal gives SpaceX a profitable AI coding app and developer distribution, but the claim that it now controls every AI layer still leaves one open test: whether Grok can compete with rival foundation models.
SpaceX exercised its option on June 16, 2026, to buy Anysphere, the company behind the AI coding agent Cursor, for $60 billion in stock, according to the source material and reports from The Guardian and Investor’s Business Daily. The deal matters because it gives SpaceX a paid AI application and developer channel days after its IPO pushed the company above a $2 trillion valuation, while leaving Grok’s model performance as the main unresolved test.
The transaction is structured as all stock, with each Cursor share converting into SpaceX Class A shares. It is expected to close in the third quarter of 2026, after which Cursor would become a wholly owned SpaceX subsidiary. SpaceX had previously secured an option to buy Anysphere for $60 billion or pay a $10 billion alternative fee if it did not proceed.
Cursor gives SpaceX an AI product with reported revenue. The source material puts Cursor at roughly $4 billion in annualized revenue by early June, up from $2 billion in February, and says Anysphere had turned away earlier approaches from OpenAI and Microsoft. Cursor CEO Michael Truell described the work with SpaceX as a joint push to build “the world’s most useful AI models,” with a co-trained model planned for Cursor and Grok Build.
The confirmed move is the Anysphere acquisition. The broader interpretation is that SpaceX now spans power, compute, research, model, application and distribution. The weaker point, according to the analysis in the source material, remains Grok’s performance relative to the scale of SpaceX’s compute build-out.
SpaceX owns every layer
of AI now
The $60B Cursor buy completes the stack: power, compute, research, model, app, distribution. But owning every layer isn’t winning every layer — and the model is the weak one.
(Anysphere)
You can buy a coding app and a model team. You can’t buy the research lead that makes your foundation model the one everyone else builds on — which is why Anthropic pays Musk $1.25B/month, not the other way around. Owning every layer bought SpaceX the right to attempt the hard thing. It hasn’t done it yet.
Cursor Gives SpaceX Paying Users
Cursor changes the shape of SpaceX’s AI business because coding tools are one of the few AI categories where companies are paying at large scale today. If the acquisition closes, SpaceX gets revenue, a developer customer base and a product channel that can place its own models inside daily engineering work.
The deal also shows how SpaceX is trying to turn infrastructure into leverage. Its Memphis Colossus site is described in the source material as having about 555,000 Nvidia GPUs and roughly 2 gigawatts of power capacity. That supply can be used to train Grok, support Cursor and rent unused capacity to outside AI companies.
For readers following AI competition, the point is not only that SpaceX bought a popular coding app. The purchase tests whether vertical ownership can close a model gap. If Grok remains behind rival systems, SpaceX may own the pipes and the storefront while others still set the standard for the software layer.
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Colossus Put Compute First
SpaceX’s AI stack was assembled rapidly in 2026. The source material says xAI was folded into SpaceX in February, bringing Grok and its research team inside the company. The Cursor purchase adds an application layer on top of power generation, data centers, model research and distribution through X, Tesla, Optimus and Cursor’s existing developer base.
The compute build-out is the strongest confirmed piece of the story. The source material says the first 100,000-GPU Colossus cluster in Memphis went from factory floor to training in 122 days and later doubled to 200,000 GPUs in 92 more days. Reported public estimates cited there put the initial phase at as much as $4 billion and the silicon across the expanded site near $18 billion.
At the same time, SpaceX has shifted part of Colossus 1 into a landlord role. According to lease figures in the source material, Anthropic is paying $1.25 billion a month through May 2029 and Google is paying $920 million a month through June 2029 for access to capacity, equal to roughly $26 billion a year if those terms run as described.
“the world’s most useful AI models”
— Michael Truell, Cursor CEO
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Grok Still Has to Prove Itself
Several key points are not settled. It is not yet clear how regulators will treat a $60 billion all-stock acquisition so soon after SpaceX’s IPO, whether the deal will close on the expected Q3 2026 schedule, or how Cursor’s current customers will respond to ownership by SpaceX.
The model question is larger. The source material says xAI moved Grok training from Colossus 1 to Colossus 2 after it struggled to parallelize work across a mixed H100, H200 and GB200 cluster; it also cites a reported internal xAI memo that described Colossus 1 utilization at about 11% and called that “embarrassingly low.” Those details point to execution risk, but they do not independently establish how Grok compares with each rival model today.
It also remains unclear when the co-trained Cursor and Grok Build model will be available, what data will be used to train it, and whether enterprise customers will accept tighter links between their coding environment and SpaceX’s AI infrastructure.
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Closing Will Test the Thesis
The next milestone is the expected Q3 2026 closing. Until then, investors and customers will be watching for regulatory disclosures, any changes to Cursor’s enterprise terms and signs that key Anysphere engineers stay through the integration.
After closing, the clearest test will be product evidence: whether Cursor ships the promised co-trained model, whether Grok Build improves inside real coding workflows and whether SpaceX can use Colossus capacity without starving third-party lease revenue. The acquisition gives SpaceX the right to try that plan; it has not yet shown that the model layer is solved.
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Key Questions
What did SpaceX buy?
SpaceX agreed to buy Anysphere, the company behind Cursor, an AI coding agent used by software developers. The deal is valued at $60 billion in SpaceX stock.
Why is Cursor valuable to SpaceX?
Cursor brings paying customers, developer distribution and a team already building AI coding systems. That gives SpaceX an application layer to pair with its compute infrastructure and Grok models.
Does this mean SpaceX has the strongest AI model?
No. The deal confirms ownership of Cursor, not model leadership. The source material argues that Grok remains the weak point SpaceX still has to improve.
What are Anthropic and Google doing in this story?
According to lease figures cited in the source material, Anthropic and Google are renting Colossus capacity from SpaceX. That turns part of SpaceX’s AI infrastructure into a revenue source even while it builds its own products.
When could the deal close?
The acquisition is expected to close in Q3 2026, pending the remaining steps required for completion. Regulatory review, customer reaction and product integration remain open areas to watch.
Source: Thorsten Meyer AI
