---
title: "Is OpenAI Pulling Models From Cursor? Yes — Proposed Shutoff November 12"
description: "OpenAI said on August 28, 2026 that it will wind down the contract that supplies its models to Cursor after the SpaceX close. Proposed shutoff: November 12, 2026. The $60 billion acquisition price remains press. Cursor’s CEO said OpenAI is about 5% of user traffic."
date: 2026-08-29T00:00:00.000Z
tags: ["2026-vc-news", "mergers-acquisitions", "artificial-intelligence", "developer-tools", "venture-capital"]
source: https://venturecapitaltracker.com/2026-openai-winds-down-cursor-models
---

# Is OpenAI Pulling Models From Cursor? Yes — Proposed Shutoff November 12

> OpenAI said on August 28, 2026 that it will wind down the contract that supplies its models to Cursor after the SpaceX close. Proposed shutoff: November 12, 2026. The $60 billion acquisition price remains press. Cursor’s CEO said OpenAI is about 5% of user traffic.

**[OpenAI](/startup/openai) is winding down the contract that supplies its models to [Cursor](/startup/cursor).** The lab said on **August 28, 2026** that it notified [SpaceX](/startup/spacex) and proposed a **November 12, 2026** shutoff.

**Unexpected truth:** the **acquisition already closed** (Cursor, August 14). This is a **change-of-control cancellation**, not a broken sale. The **$60 billion** price is still **press**. Cursor’s CEO said OpenAI is about **5% of user traffic** — his number, not OpenAI’s.

This page is for developers and investors who need the vendor fact with dates. Last verified **August 29, 2026**. Primary: [OpenAI’s Cursor post](https://openai.com/index/our-decision-on-cursor-following-its-acquisition-by-spacex/). Close memo: [SpaceX closed Cursor](/2026-spacex-closes-cursor-acquisition).

## Five-minute decision

| If you need…                  | Verdict                                                                     |
| ----------------------------- | --------------------------------------------------------------------------- |
| Did the sale close?           | **Yes.** Cursor blog, Aug 14, 2026.                                         |
| Are OpenAI models gone today? | **No.** Proposed shutoff **November 12, 2026**.                             |
| Why OpenAI says it is leaving | **ToS / change-of-control.** Names X and xAI, both now in the SpaceX orbit. |
| Price of the acquisition      | **$60B all-stock is press.** Not in Cursor’s close post.                    |

**Investigate further when:** you underwrite Cursor as a **multi-model IDE** and need to know which lab still ships into the editor.

**Wait or pass when:** you only needed a $60B recap — that figure did not become a company filing on August 28.

## What happened

| Field                        | Detail                                                                                                                                 |
| ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| Who spoke                    | [OpenAI](/startup/openai) (company post, Aug 28, 2026)                                                                                 |
| Counterparty                 | [SpaceX](/startup/spacex), owner of [Cursor](/startup/cursor) / Anysphere                                                              |
| Action                       | Wind down the contract that provides OpenAI models to Cursor                                                                           |
| Proposed shutoff             | **November 12, 2026** — OpenAI says this is the **maximum notice** in the contract                                                     |
| Legal hook                   | Custom Cursor agreement lets OpenAI cancel after a **change of control**                                                               |
| Stated reason                | Cannot be confident SpaceX will stay inside OpenAI’s terms, “based on our experience with Elon Musk’s companies violating contracts”   |
| Named precedents in the post | X (after the Twitter acquisition) broke a contract; Musk admitted under oath that **xAI** violated OpenAI terms (similar to xAI’s own) |
| Future models                | OpenAI says it will not provide future models, including **Astra**, to Cursor                                                          |
| Acquisition status           | **Closed** Aug 14 (Cursor). **$60B** remains CNBC / The Verge                                                                          |

Cursor CEO **Michael Truell** said on **August 29** that OpenAI models serve about **5% of Cursor user traffic** and that the teams are speaking. Treat that as a **founder social-media statement**, not a filing.

## Closed sale vs cancelled API — what differs

|                     | Aug 14 close                            | Aug 28 OpenAI notice                |
| ------------------- | --------------------------------------- | ----------------------------------- |
| Status              | **Acquisition closed**                  | **Vendor contract** proposed to end |
| Who published       | Cursor                                  | OpenAI                              |
| Date that matters   | Aug 14, 2026                            | Proposed **Nov 12, 2026** shutoff   |
| Money fact          | Price **not** in the company close post | **No** new deal price               |
| Product implication | Cursor is SpaceX-owned                  | OpenAI models have a dated off-ramp |

Most people will paste “OpenAI blocked Cursor.” The accurate line is: **notice given, shutoff proposed for November 12, talks claimed by Cursor.**

## Why this is a live problem now

- Cursor’s close note sold **SpaceX GPU capacity** and **Grok 4.6**. An OpenAI off-ramp makes that Grok-first path less optional.
- OpenAI is also a **competitor** (Codex / ChatGPT coding). A change-of-control clause is how a lab exits a customer that just joined a rival conglomerate.
- Independent tools raised the same month — [Lovable](/2026-lovable-400m-series-c-menlo-13-3b) at **$13.3B** is still a standalone product. Cursor is not.

Prior investors on the sold company: [a16z](/fund/andreessen-horowitz), [Thrive](/fund/thrive-capital), [Coatue](/fund/coatue), [Benchmark](/fund/benchmark). This notice does not reopen that cap table.

## Worked numbers (labeled)

1. **Setup:** Truell’s **5%** traffic line, if you take it at face value.
2. **Move:** 95% of sessions already sit on other models or first-party / Grok paths.
3. **Punch:** the diligence question is **not** “does Cursor die on November 12?” It is whether **power users** of that 5% churn — **indicative**, and only as good as the founder percentage.

## When not to use this page

- Do not write that OpenAI **already** shut the models off. The dated clock is **November 12, 2026**.
- Do not treat **$60B** as newly confirmed. It is the same press figure as June / close day.
- Do not say the SpaceX acquisition **failed**. It closed August 14.
- Do not invent a replacement-vendor contract with Anthropic or Google. Neither company posted one in the OpenAI note.

## Where to go next

Close memo: [Did SpaceX buy Cursor?](/2026-spacex-closes-cursor-acquisition). Entities: [Cursor](/startup/cursor), [OpenAI](/startup/openai), [SpaceX](/startup/spacex). Independent alternative still private: [Lovable](/startup/lovable). Month: [August 2026 VC news](/2026-august-vc-news). Directory: [/directory](/directory).

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** August 29, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.