SpaceX Is Buying Cursor. What Happens to OpenAI and Anthropic Access?

SpaceX is acquiring Cursor, the AI-powered coding assistant that lets developers pick between models from OpenAI, Anthropic, and other frontier labs. According to Wired, Cursor wants to keep that multi-model setup intact after the deal closes. But with SpaceX owning the product, it is far from certain that OpenAI and Anthropic will stay comfortable supplying their models through a competitor's platform, putting those commercial relationships under genuine strain.

What happened

SpaceX is buying Cursor, the coding tool built by Anysphere that has become one of the most widely used AI development environments available. Cursor’s value to developers comes largely from its flexibility: users can route their work through models from OpenAI, Anthropic, or other providers depending on the task.

According to Wired, Cursor has stated it wants to continue offering those third-party model options after the acquisition. That intention, however, depends entirely on whether OpenAI and Anthropic are willing to keep the arrangement in place once SpaceX is Cursor’s owner.

Why it matters

SpaceX is not just any acquirer. Elon Musk founded SpaceX and also runs xAI, the company behind the Grok models. That creates a direct competitive tension. OpenAI and Anthropic both sell access to their models through API agreements, and those agreements typically involve commercial and legal terms that can be revisited when a customer changes hands.

The core question is whether either lab will treat a SpaceX-owned Cursor as a distribution channel worth maintaining, or as a competitive risk worth cutting off. A few things make that decision genuinely complicated:

• Cursor has a large, active developer user base. Losing that distribution is not trivial for either lab.
• xAI’s Grok models are a natural replacement if third-party access is withdrawn, which could accelerate Grok adoption among developers.
• Neither OpenAI nor Anthropic has publicly said what it will do, so there is no confirmed outcome yet.

For developers who have built habits and workflows around choosing their model inside Cursor, any forced change would be a real disruption. Teams at larger companies may face compliance or procurement issues if their chosen model suddenly becomes unavailable inside their primary coding tool.

Our take

This is a stress test for the idea that AI models are neutral infrastructure that any product can plug into. In practice, model access is a commercial relationship, and commercial relationships respond to competitive pressure.

Our honest read: OpenAI and Anthropic will weigh the revenue from Cursor’s API usage against the reputational and strategic cost of feeding a Musk-affiliated product. For now, neither lab has an obvious reason to act immediately. The risk escalates if Cursor starts promoting Grok as a default or SpaceX uses the tool internally at scale in ways that disadvantage the other labs.

For developers, the practical advice is straightforward. Do not build internal tooling or team workflows that are locked to one model delivered through one client. The multi-model flexibility Cursor currently offers is a feature, but it is one that depends on corporate relationships staying intact. Treat it as a convenience, not a guarantee.

Whoever ends up controlling what models Cursor surfaces by default will have real influence over which AI providers developers reach for first. That is worth watching closely.

What to do about it

If your team relies on Cursor with a specific model (say, Claude for code review or GPT-4o for documentation), test an alternative setup now. Identify at least one other IDE or AI coding tool that can serve the same model via its own API connection. That way, a change in Cursor’s model lineup does not stop your team’s work. Options worth evaluating include GitHub Copilot, Windsurf, and direct API integrations in VS Code.

Source: WIRED · AI