TL;DR
SpaceX exercised its option on June 16, 2026, to buy Anysphere, the maker of Cursor, for $60 billion in all-stock, according to the source material citing company filings. The deal gives SpaceX a profitable AI coding app and developer distribution, but reports cited in the material say Grok’s model performance and Colossus utilization remain open tests.
SpaceX exercised its option on June 16, 2026, to buy Anysphere, the company behind the AI coding agent Cursor, for $60 billion in all-stock, a deal that would give SpaceX direct control over a major paid AI application while raising fresh questions about whether its Grok model can match the strength of its compute buildout.
The source material says each Cursor share will convert into SpaceX Class A shares, with the transaction expected to close in the third quarter of 2026. It says SpaceX had earlier secured the right to buy Cursor for $60 billion or pay a $10 billion alternative fee.
Cursor is described as one of the few AI applications already producing large revenue, with annualized revenue near $4 billion by early June, up from about $2 billion in February. The source material says Cursor had previously rebuffed approaches from OpenAI and interest from Microsoft before SpaceX moved ahead with the purchase.
Confirmed in the source material: the acquisition, the expected ownership structure and the planned tie-in between Cursor and SpaceX’s AI operations. Reported but still dependent on cited filings and internal material: the scale of outside compute leases, Colossus utilization figures and the assessment that Grok has underperformed relative to SpaceX’s hardware advantage.
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.
Control Shifts To The Stack
The deal matters because it moves SpaceX beyond infrastructure and model development into a revenue-generating AI application with an existing developer base. If the transaction closes, SpaceX would own or control power generation, large-scale Nvidia GPU clusters, AI research through xAI, the Grok model line, the Cursor application and distribution channels tied to X, Tesla and Optimus.
That level of vertical control is rare among major AI companies. OpenAI and Anthropic depend heavily on rented compute, while Google owns major silicon and cloud assets but does not combine them with SpaceX’s rocket, satellite, power and capital base. The advantage for SpaceX is clear: it can aim to train, deploy and sell AI products inside one corporate structure.
The risk is just as clear. Buying Cursor solves the application gap, but it does not prove Grok can become the model layer other developers choose ahead of rivals. The source material frames that model layer as the weak link, citing the move of Grok training to Colossus 2 and the rental of Colossus 1 capacity to outside customers.
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Cursor Completes The Missing Layer
Anysphere was founded in 2022 by four MIT graduates and built Cursor into a widely used AI coding tool. The source material says the company had become one of the clearest examples of business demand for paid AI software, especially in software development.
The acquisition follows SpaceX’s reported consolidation of xAI in February 2026 and the rapid construction of Colossus infrastructure in Memphis. The source material says the first 100,000-GPU cluster went from bare factory floor to training in 122 days, then doubled to 200,000 GPUs in 92 additional days.
The Memphis site is reported to include about 555,000 Nvidia GPUs across H100, H200 and GB200 systems, with roughly 2 gigawatts of power capacity. Those figures are attributed in the source material to filings and public reporting, not independently verified here.
“the world’s most useful AI models”
— Cursor CEO Michael Truell
AI Engineering: Building Applications with Foundation Models
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Grok Still Faces Proof
It is not yet clear whether the acquisition will improve Grok enough to make SpaceX’s model layer competitive with the strongest frontier systems. The source material says a co-trained model is expected to ship into Cursor and Grok Build soon, but no independent benchmark results, release date or customer adoption data are provided.
The economics of the compute rental strategy also remain partly unclear. The source material says Anthropic is leasing Colossus 1 capacity through May 2029 for $1.25 billion per month, while Google is leasing capacity through June 2029 for $920 million per month. Those figures are attributed to SpaceX filings in the material, but the operational terms and margins are not detailed.
It is also unclear how Cursor will operate after closing. The material says Cursor will become a wholly owned subsidiary, but does not state whether pricing, model choice, enterprise terms or product independence will change.
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Closing And Model Release Ahead
The next milestone is the expected closing of the Anysphere deal in Q3 2026. After that, readers should watch for changes to Cursor’s product roadmap, any required disclosures from SpaceX and the first release of the jointly trained model into Cursor and Grok Build.
The larger test will be whether SpaceX can turn infrastructure control into model preference. If developers keep using Cursor but choose outside models, SpaceX will own a strong application without fully solving the model problem that the deal is meant to address.
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Key Questions
What did SpaceX buy?
SpaceX exercised its option to buy Anysphere, the maker of Cursor, in a $60 billion all-stock deal, according to the source material citing filings.
When is the deal expected to close?
The transaction is expected to close in the third quarter of 2026, after which Cursor would become a wholly owned SpaceX subsidiary.
Why is Cursor valuable to SpaceX?
Cursor gives SpaceX a paid AI coding application, a large developer user base and a model team that can be tied directly to SpaceX’s compute and Grok efforts.
What is the weak link in SpaceX’s AI stack?
The source material identifies Grok, SpaceX’s model layer through xAI, as the weak point. That is an assessment based on reported model performance, training changes and the decision to rent unused Colossus 1 capacity.
Are the Colossus rental figures confirmed?
The source material attributes the Anthropic and Google lease figures to SpaceX filings. The detailed contract terms, margins and operating performance are not fully laid out in the material.
Source: Thorsten Meyer AI
