SpaceXAI partners with Cursor

SpaceX said on April 21 that it is working with Cursor on coding-focused artificial intelligence and holds an option to buy the startup for $60 billion later this year. (cnbc.com) The company said the alternative is a $10 billion payment for “our work together,” and described the project as a push to build “coding and knowledge work AI.” Cursor chief executive Michael Truell said the partnership will help “scale up Composer,” Cursor’s in-house coding model. (cnbc.com) SpaceX said the tie-up combines Cursor’s software product and reach with the Colossus training system, which it says has compute equivalent to 1 million Nvidia H100 chips. TechCrunch reported last week that Cursor had already been looking to use tens of thousands of xAI chips for model training. (techcrunch.com) Coding models are trained to write, edit, test, and debug software, and newer “agentic” versions can take multi-step actions inside a codebase instead of only answering prompts. Cursor’s March technical report said Composer 2 is built for that kind of software engineering work and posted benchmark scores of 61.7 on Terminal-Bench and 73.7 on SWE-bench Multilingual. (cursor.com) Cursor had been explicit about a hardware constraint before this deal. On April 21, the company said its model work had been “bottlenecked by compute” and that access to Colossus would let it “dramatically scale up the intelligence” of its models. (cursor.com) The timing lands in the middle of a fast-moving race in coding tools. TechCrunch said neither xAI nor Cursor currently has a model that clearly matches the top coding offerings from Anthropic or OpenAI, even as those companies compete directly for developers. (techcrunch.com) The valuation jump is also part of the story. CNBC reported that Cursor was in talks to raise $2 billion at a valuation above $50 billion, while TechCrunch said the company had been valued at $2.5 billion in January 2025, $9 billion by May 2025, and $29.3 billion after a November 2025 Series D. (cnbc.com) (techcrunch.com) Musk folded xAI into SpaceX in February, according to CNBC, giving the combined company direct control of the Colossus system before a planned initial public offering. That makes this agreement both a product partnership and a way to lock in a price on a fast-growing developer software company. (cnbc.com) For now, the only confirmed terms are the collaboration, the Colossus access, and the choice between a $10 billion payment and a $60 billion acquisition later in 2026. Whether SpaceX actually exercises that option will decide if this remains a compute deal or becomes one of the year’s biggest artificial intelligence takeovers. (cnbc.com)