SpaceX Secures $60B Option to Acquire AI Coding Startup Cursor
Elon Musk’s SpaceX has secured an option to acquire AI coding startup Cursor for $60 billion, according to Bloomberg. The agreement gives SpaceX the right to either buy Cursor outright or pay $10 billion for a deep collaboration with xAI’s Colossus supercomputer. The arrangement pre-empted a $2 billion funding round Cursor had been negotiating, and reportedly shut out Microsoft, which was an earlier suitor.
The Deal Structure
The agreement is unusual: it’s an option, not a completed transaction. SpaceX can exercise the full $60 billion acquisition, or alternatively put $10 billion into a compute-and-integration partnership that would wire Cursor’s code generation and editing tools into xAI’s Colossus cluster. Bloomberg reports that the option was priced high enough to blow past the valuation Cursor’s venture investors had assigned in their in-progress $2 billion round, effectively forcing the table on any competing bid.
For Cursor, the deal solves two constraints at once — valuation uncertainty and access to frontier compute. Training and serving a coding-focused frontier model against rivals like GitHub Copilot and Anthropic’s Claude-based coding tools requires GPU capacity that is expensive to rent and harder still to guarantee at scale.
Microsoft’s Missed Window
Before SpaceX moved, Microsoft had reportedly examined Cursor as an acquisition target, according to CNBC. Microsoft already owns GitHub and its Copilot product line, which has been steadily expanding into agentic coding. Buying Cursor would have consolidated the AI dev-tools stack under one roof; letting it slip to SpaceX hands Musk’s AI group a direct foothold in the same market Microsoft has been defending.
CNBC’s sources describe Microsoft’s interest as exploratory rather than a firm bid, which may explain the speed of SpaceX’s move. In an active acquisition market, the gap between “kicking the tires” and “signing term sheets” is narrower than most incumbents account for.
Why xAI Colossus Is the Real Lever
The $10 billion partnership path is the more interesting half of the structure. Colossus, xAI’s GPU supercluster, is one of the largest training clusters operating outside the hyperscalers. Binding Cursor’s models and inference to Colossus would give xAI a distribution layer it doesn’t currently have — developers sit in their editors all day — while giving Cursor access to training capacity at a cost envelope independent of Microsoft Azure or AWS.
If SpaceX converts the $10 billion option instead of the $60 billion one, it pays a sixth of the price and still achieves most of the strategic objective: Cursor becomes the default coding surface for models trained and served on Musk-aligned infrastructure.
What Comes Next
The option’s exercise window was not disclosed publicly. Expect regulatory attention, particularly around the overlap between SpaceX, xAI, and X — a vertical stack that would tie launch, compute, a consumer social platform, and a developer-tools surface under one owner. Microsoft and Amazon will likely re-price their own AI dev-tools strategies in response. And a $60 billion number, even as an option, resets the valuation floor for every other coding-focused AI startup in the market.
