According to court filings, OpenAI has had disappointing results working with Apple to integrate ChatGPT into Siri [PDF] in his ongoing legal battle with Elon Musk’s company SpaceXAI (xAI at the time the lawsuit was filed).
Apple added ChatGPT to Siri in December 2024, but users had to go through a multi-step opt-in process, which added a level of friction. By January 2025, OpenAI said the integration was “off to a slow start,” and the company lowered its forecast for the number of incremental registered weekly active users it expected to get from the partnership.
Much of the documentation was redacted, but OpenAI said that when Musk’s companies filed an antitrust lawsuit against Apple and OpenAI, “it was clear that Apple’s integration of ChatGPT was dramatically underperforming.” In a later section of the document, OpenAI again stated that Apple’s integration was “persistently underperforming,” leading to a March 2026 conversation between Apple and OpenAI that was redacted.
OpenAI asked Apple for a two-year exclusivity period, but Apple refused. The agreement between the two companies explicitly stated that the agreement was non-exclusive and that Apple had the right to “integrate products or services that provide the same or similar functionality as [ChatGPT].” Apple told OpenAI that it planned to integrate one vendor and then add others, and made similar statements publicly when it announced the feature. Apple also signed a deal with Google, and Apple’s most recent models are based on Gemini.
OpenAI’s document disputes many of the claims in the xAI lawsuit. Musk said that OpenAI and Apple had an exclusive agreement and that the deal would hurt xAI’s growth and customer acquisition. OpenAI says the contract shows there was no exclusive agreement, and even if there was, xAI can’t prove harm because the ChatGPT Siri integration simply hasn’t attracted many new ChatGPT users.
Even if the Court assumes that Apple users who choose to use ChatGPT via Apple Intelligence are barred from OpenAI’s rivals (which they are not), the amount of foreclosure caused by the settlement is indisputably de minimis. While the plaintiffs’ experts declined to calculate foreclosure shares, OpenAI expert Dr. Catherine Tucker calculated the share of GenAI consumers who accessed ChatGPT via Apple Intelligence across multiple metrics using the same data and market definition that the plaintiffs’ experts rely on. On these assumptions, Dr. Tucker found foreclosure actions of [REDACTED] across all metrics, in line with OpenAI’s internal view that Apple Intelligence has seen minimal usage.
Musk’s companies dropped their claims against Apple earlier this month, leaving OpenAI as the sole defendant in the lawsuit. OpenAI’s statement asks the court to dismiss xAI’s claims ahead of the trial scheduled for January 2027.
