# OpenAI to Unbundle Cursor Once SpaceX Deal Closes — Nov 12 Cutoff

Times of AI Desk · 2026-08-28 · Frontier Labs

[https://timesof.ai/2026/08/openai-cursor-spacex-acquisition-cutoff](https://timesof.ai/2026/08/openai-cursor-spacex-acquisition-cutoff)

> OpenAI will stop serving Cursor after SpaceX’s acquisition of Anysphere closes, with a proposed November 12 cutoff.

**Corrected October 14, 2026:** Removed unsourced statements attributed to Cursor's Michael Truell (OpenAI ~5% of traffic) and Anthropic's Tom Brown.

Frontier labs are **unbundling each other’s IDEs**. The traffic loss may be survivable; a **precedent** that acquiring a coding client means losing OpenAI weights is not.

**OpenAI** published **“Our decision on Cursor following its acquisition by SpaceX.”** Once **SpaceX** closes the **Anysphere / Cursor** deal — reported at **~$60 billion** — OpenAI will **stop providing models and API access** to Cursor. Proposed cutoff: **November 12, 2026**.

## What OpenAI is doing

| Item | openai.com/index Aug 28 |
|------|-------------------------|
| **Trigger** | SpaceX acquisition of **Cursor / Anysphere** |
| **Action** | End model/API service to Cursor |
| **Date** | Proposed **Nov 12, 2026** |
| **Stated reason** | OpenAI says it cannot be confident SpaceX will use its technology within its terms of service, citing past contract violations by Musk's companies; its contract allows cancellation after a change of control |

This is **distribution politics**, not a new model. Grok is already in **GitHub Copilot** (Aug 14) and **Cursor** is xAI’s coding surface.

## Limits

- Cutoff is **proposed** Nov 12; it can slip.
- Deal close itself is not confirmed in OpenAI’s post.
- Whether **Microsoft** keeps Grok in Copilot while OpenAI walks out of Cursor is a separate negotiation.

## Sources

- [OpenAI: Our decision on Cursor following its acquisition by SpaceX (August 28, 2026)](https://openai.com/index/our-decision-on-cursor-following-its-acquisition-by-spacex/)
- Reuters / CNBC / Business Insider Saturday coverage of the Friday post