SpaceX has closed its $60 billion acquisition of AI coding startup Cursor, finalizing a deal that began as an April partnership with a purchase option and moved to a formal commitment in June. The transaction gives Elon Musk's space company control of a startup that has already been training its Grok models and running workloads on SpaceX's Colossus supercomputer.
The terms the source does not say
The announcement does not specify whether the consideration is cash, stock, or a mix. It does not disclose a premium to Cursor's undisturbed price, nor any break fee or regulatory condition. Musk said on an August earnings call that the company did not want to "jump the gun on regulators for closing the acquisition," suggesting antitrust review was still a live factor at that point.
Grok training runs through Cursor
Cursor says it jointly trained Grok 4.5 with SpaceX using "trillions of tokens of Cursor data," marking the first model the startup built that was not exclusively for software engineering. The company also contributed to Grok 4.6, which SpaceX released on Wednesday. Cursor cofounder Aman Sanger described the collaboration with the SpaceXAI team as a pleasure in a July post on X.
Compute access as the real currency
The partnership gave Cursor access to Colossus, SpaceX's 200,000-GPU supercomputer also used by Anthropic. Cursor said in April that the compute would let it "dramatically scale up" its models' intelligence, adding that it had been "bottlenecked by compute" before the arrangement. The acquisition formalizes a dependency that was already operational.
Bundled distribution starts immediately
SpaceX launched Grok Bot on Tuesday, making it available to SuperGrok Heavy users, Cursor Ultra subscribers, and Cursor Premium Teams. Recent Grok releases are now surfaced as "first-party models" inside Cursor's system. The product integration moved faster than the regulatory clearance Musk alluded to on the earnings call.