Cursor受欢迎的主因之一是可在单一介面切换多种模型，包括OpenAI的GPT、Anthropic的Claude等，对任务匹配更有弹性。若日后由Elon Musk控制，即便产品本身不改，使用者在关键流程上仍可能因竞争关系而犹豫。就在这个关键时点，Sam Altman与Huang的邮件往来（时间上位于最近一周内）显示OpenAI的Codex正在Nvidia内部全面铺开，并要求「fire up those Blackwells」，表示Nvidia正将其计算资源与部署范围同步扩张到全公司。

在Cursor未来所有权仍处于谈判中的同时，Nvidia也在公司内扩张Codex，但工程师仍偏好Cursor，因其多模型整合是目前重要优势。若Codex绑定OpenAI模型较深，弹性可能受限。从趋势看，模型快速进步且差距缩窄，开发价值正转移到介面层、工具与工作流程；OpenAI与Elon Musk都在追赶。Nvidia过去凭借平衡三方关系受益：Musk系公司是主要晶片客户，Cursor是关键软体资产，OpenAI也逐步深度嵌入；但若Cursor进入SpaceX，这种平衡将难以维持。

Nvidia is both an investor in and a core user of Cursor. Jensen Huang has repeatedly presented it as evidence that AI is already delivering gains in software development, but the strategic context is shifting: SpaceX, which now owns xAI, has offered the right to acquire Cursor later this year for $60 billion, or pay $10 billion to continue working together, effectively a break-up fee. This creates a capital-structure risk for a company that is still growing strongly and deeply embedded inside Nvidia.

Cursor’s major strength is that users can switch between multiple models in one interface, including OpenAI’s GPT and Anthropic’s Claude, depending on the task, which has made it unusually sticky. If ownership moves to Elon Musk, even without product changes, companies may hesitate to rely on it for critical workflows because it would be controlled by a direct competitor. At the same time, Sam Altman’s recent email exchange with Jensen Huang showed OpenAI’s Codex being rolled out across Nvidia, with a directive to “fire up those Blackwells,” indicating enterprise-wide scaling.

While Cursor’s ownership remains in flux, Nvidia is expanding Codex internally, yet many engineers still prefer Cursor, with few seeing the same model flexibility if Codex stays tightly coupled to OpenAI models. The wider trend is that models are improving quickly and gaps are narrowing, so competitive advantage is shifting toward interface, tooling, and workflow, and both OpenAI and Elon Musk are now accelerating in this area. Nvidia has so far balanced all sides because SpaceX-linked entities remain major chip customers, Cursor is a key internal productivity layer, and OpenAI is increasingly embedded; if Cursor ends up inside SpaceX, that balance becomes much harder to sustain.