OpenAI Ends $1B Cursor Deal to Cut Ties with Elon Musk
Original: OpenAI Cut Off a Billion-Dollar Customer to Avoid Elon Musk
Why This Matters
The split signals how Musk-OpenAI tensions are now shaping billion-dollar enterprise deals across the AI industry.
OpenAI terminated its partnership with AI coding startup Cursor in late August 2026, forgoing an estimated $1 billion+ in annualized revenue. The decision followed SpaceX's $60 billion acquisition of Cursor, with OpenAI citing inability to trust Elon Musk's companies to comply with its terms of service.
OpenAI announced via a late-night blog post that it would wind down its partnership with Cursor, one of the most popular AI coding tools, after SpaceX acquired the startup in a $60 billion deal. At the start of 2026, Cursor ranked among OpenAI's top five customers by revenue. By spring 2026, OpenAI internally estimated the partnership would generate more than $1 billion in annualized revenue. OpenAI stated: 'We cannot be confident that SpaceX will use our technology within our terms of service, based on our experience with Elon Musk's companies violating contracts.' Cursor CEO Michael Truell, now leading teams at SpaceX, responded on X claiming OpenAI models account for only 'about 5% of Cursor user traffic.' OpenAI's head of core products Thibault Sottiaux pushed back, noting that token usage is 'not a proxy for revenue nor value created.' OpenAI, which now reportedly generates over $40 billion in annualized revenue across subscriptions, ads, and its own Codex AI coding tool, acknowledged the breakup may harm its standing with the developer community. The company is preparing for a public offering in 2027 and aims to demonstrate a more stable, diversified business that does not depend on goodwill from Musk.