Sam Altman Doesn’t Trust Elon Musk’s Cursor, Musk Says He Couldn’t Care Less. Here’s Why He Is Right.

Elon Musk and Sam Altman's long-standing disagreement has escalated beyond legal disputes to involve their respective companies and products. Recently, SpaceX acquired Cursor's parent company, Anysphere, for $60 billion, leading OpenAI to terminate its partnership with Cursor. OpenAI cited trust issues, citing Musk's past breaches of contract.

Musk, however, dismissed concerns, stating "I couldn't care less" and accusing Altman of stealing a nonprofit. The conflict traces back to Musk's co-founding of OpenAI as a nonprofit in 2015, later leaving the board in 2018. Musk launched rival xAI in 2023 and sued OpenAI, Altman, and Greg Brockman in 2024, alleging they abandoned their original mission for profit.

OpenAI will no longer use Cursor's models, which make up roughly 5% of Cursor's traffic. Nonetheless, SpaceX gains a rapidly growing business valued at around $4 billion. SpaceX's stock has rebounded strongly post-IPO despite facing a 33% drop from its high. Despite the OpenAI setback, SpaceX's stock remains bullish, with analysts projecting a 46% potential upside.