TL;DR
SpaceX exercised its option on June 16, 2026, to buy Anysphere, the maker of Cursor, in a $60 billion all-stock deal expected to close in Q3 2026. The acquisition gives SpaceX a paid AI coding product and developer distribution, but public reports and internal claims still leave open whether Grok can compete at the foundation-model layer.
SpaceX exercised its option on June 16 to acquire Anysphere, the maker of the AI coding tool Cursor, for $60 billion in an all-stock deal, a move that gives the newly public company a major revenue-generating AI application while its Grok model remains the least proven part of its AI strategy.
The transaction is expected to close in the third quarter of 2026, after which Cursor will become a wholly owned SpaceX subsidiary. According to the source material and reports cited there, each Cursor share will convert into SpaceX Class A shares. SpaceX had earlier secured the right to buy the company for $60 billion or pay a $10 billion alternative fee.
Cursor CEO Michael Truell framed the deal as a joint effort to build “the world’s most useful AI models,” with a co-trained model expected to ship into Cursor and Grok Build soon. That is a company claim, not yet an independent performance finding. The confirmed business point is that Cursor gives SpaceX an AI coding product with reported annualized revenue of about $4 billion by early June, up from roughly $2 billion in February.
The deal follows SpaceX’s blockbuster public listing, which the source material says pushed its market value past $2 trillion. Public reporting from The Guardian and Investor’s Business Daily also described the acquisition as a $60 billion all-stock transaction expected to close in Q3 2026.
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 Fills SpaceX’s App Gap
The acquisition matters because SpaceX already had many of the hard assets needed for large-scale AI: power, data centers, chips, a research group through xAI, and distribution through X, Tesla, Optimus and Starlink-linked channels. Cursor adds the missing commercial application layer: a developer tool that businesses are already paying for at scale.
That gives SpaceX a tighter AI stack than most rivals. OpenAI and Anthropic still depend heavily on outside compute partners. Google owns deep AI infrastructure but does not have the same rocket, satellite and energy buildout tied to one corporate balance sheet. SpaceX’s bet is that owning more layers can reduce dependency, speed product work and turn compute into both an internal resource and a rental business.
The weak point is the model. The source material characterizes Grok as underperforming relative to SpaceX’s compute base, and says training was moved to Colossus 2 after xAI struggled to parallelize Grok on a mixed H100, H200 and GB200 build. That judgment is analysis, but the business implication is plain: buying Cursor strengthens distribution and application revenue faster than it proves Grok can lead the frontier model market.
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Colossus Powers the Deal
SpaceX folded xAI into the company in February 2026, according to the source material, adding the Grok model line and AI research staff to a company already scaling compute through its Colossus systems in Memphis. The first 100,000-GPU Colossus cluster was reportedly built in 122 days, then doubled to 200,000 GPUs in another 92 days.
The broader Memphis site is described in the source material as running about 555,000 Nvidia GPUs across H100, H200 and GB200 systems, with roughly 2 gigawatts of total power capacity. The initial phase was reported at as much as $4 billion, while silicon across the expanded site was pegged near $18 billion.
SpaceX has also turned part of that infrastructure into a rental business. The source material says Anthropic is paying $1.25 billion per month through May 2029 and Google is paying $920 million per month through June 2029 for Colossus 1 access, together amounting to about $26 billion a year in compute revenue. Those figures are attributed to SpaceX filings in the source material.
“the world’s most useful AI models”
— Michael Truell, Cursor CEO
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Grok’s Standing Is Unsettled
It is not yet clear how the jointly trained Cursor-Grok model will perform, when outside users will see it, or whether it will narrow any gap with OpenAI, Anthropic or Google systems in coding and general model capability. Claims about future performance remain vendor claims until tested in real products and outside benchmarks.
Several operational details also remain incomplete, including the exact integration plan for Cursor employees, how much independence the product will keep, and whether regulators will scrutinize a deal that ties a major AI coding tool to one of the largest compute owners in the market.
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Deal Close Sets First Test
The next milestone is the expected Q3 2026 close. After that, the first test will be product-level evidence: whether the co-trained model improves Cursor and Grok Build enough for developers to notice, pay and stay. Investors will also watch Colossus utilization, lease revenue and any new filings tied to SpaceX’s proposed orbital data-center plans.
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Key Questions
What exactly did SpaceX buy?
SpaceX exercised its option to buy Anysphere, the company behind the AI coding tool Cursor, in a $60 billion all-stock deal. Cursor is expected to become a wholly owned SpaceX subsidiary after the transaction closes.
Why is Cursor valuable to SpaceX?
Cursor gives SpaceX a paid AI application with a large developer user base and reported annualized revenue near $4 billion. It also gives SpaceX a product channel where its compute and model work can be tested directly with software teams.
Does SpaceX now own the whole AI stack?
SpaceX controls or is building major pieces of the stack: power, large GPU clusters, xAI research, the Grok model line, Cursor as an application, and distribution through related platforms. That is an analysis of its position, not a guarantee that each layer leads the market.
Why is Grok described as the weak link?
The source material says Grok has underdelivered relative to SpaceX’s compute base and that training work moved from Colossus 1 to Colossus 2. Those points suggest infrastructure strength has not yet translated into clear model leadership.
What should readers watch next?
Watch for the Q3 2026 closing, details on Cursor’s operating structure, the release of the co-trained model, outside performance tests, and any new SpaceX filings on compute leasing or orbital data-center plans.
Source: Thorsten Meyer AI
