ChatGPT, Claude and Grok Go Down at the Same Time in Rare AI Outage
For a brief stretch on Thursday, some of the biggest names in artificial intelligence stopped working at almost the same time.
ChatGPT, Claude and Grok all experienced outages on September 3, leaving users unable to access chats and other features. The timing was unusual enough to raise questions about whether the services were connected, although there was no confirmation of a shared cause. By later in the day, all three platforms had restored their services.
The disruption came as AI tools have become increasingly embedded in everyday work, coding and online services. For users who rely on these platforms regularly, even a relatively short outage was enough to cause noticeable disruption.
ChatGPT users faced widespread errors
ChatGPT began showing problems at around 11 a.m. ET, according to The Verge. Users reported difficulties with several parts of the service, including logging in, uploading files, generating images and using voice mode. OpenAI also reported elevated errors affecting ChatGPT and Codex. OpenAI later said the issue had been mitigated and services were recovering. According to Wired, the company attributed its own outage to a routing error, rather than identifying a wider infrastructure failure shared with the other AI companies. The timing also happened to coincide with OpenAI's announcement of its new AI model, Astra, adding another layer of attention to the disruption.
Claude and Grok had their own problems
Anthropic's Claude experienced a partial outage affecting Claude.ai, Claude Code and the Claude API. The company described the problem as an infrastructure issue and restored the service later that day.
Grok went down earlier, with problems beginning at around 9:30 a.m. ET across its Android, iOS and web services. xAI traced the issue to a failure at its Memphis data centre and subsequently restored the platform.
That distinction is important. Although the three outages happened unusually close together, the companies did not say they were caused by the same problem.
Why the simultaneous outages stood out
AI services go offline from time to time. What made Thursday different was seeing three major AI platforms experience disruptions during roughly the same period. There was speculation online that shared cloud infrastructure could have played a role, particularly because the companies use overlapping infrastructure providers. However, there was no confirmed evidence establishing a common cause. Wired reported that major infrastructure providers including Cloudflare, AWS and Microsoft Azure did not report an outage that explained the disruption across all three services.
The incident therefore remains a case of unusual timing rather than a confirmed single-system failure. For the companies, the services are back. For users, however, the outage offered a quick reminder of how dependent many workflows have become on a handful of AI platforms—and how noticeable even a temporary interruption can be.
