AI’s Very Bad Morning: Claude, ChatGPT and Grok Had Outages at the Same Time

For anyone who has come to rely on AI chatbots, especially for work, the morning of Sept. 3 was rough.

According to online reports, including from staffers at the companies that make them, outages shut down some of the most popular AI services: OpenAI’s ChatGPT, Anthropic’s Claude AI, Google’s Gemini and xAI’s Grok.

The widespread outages appear to have started around 9:30 a.m. ET, according to user-submitted reports on Downdetector.

CJ Avilla, an Anthropic developer, said in an X post that infrastructure issues were causing outages across Claude services. A few hours later, he reported that things were back to normal.

An infrastructure issue is causing a partial outage across Claude Code, the API, and https://t.co/JQms60I8iw. We're working on it but don't have an ETA yet. We'll post here when that changes, and quickest place for updates is always https://t.co/ZyS6p0rEnb — CJ Avilla (@cjav_dev) September 3, 2026

As of this writing, ChatGPT and Claude AI were back to normal, according to their respective status pages. That appears to be the case for xAI’s Grok and Google’s cloud services as well.

An Anthropic spokesperson told CNET that service was restored around 12:16 p.m. ET: “Claude is fully back up after an infrastructure issue caused a partial outage across Claude.ai, Claude Code, Claude Cowork, and the Claude API earlier today.”

Representatives from OpenAI, Google and xAI did not immediately return a request for comment.

AI services often rely on the same cloud computing services, and, as TradingKey points out, this can lead to infrastructure outages across multiple services when things go wrong. Still, it’s unusual for multiple AI services to experience problems at the same time. Avilla’s comment about infrastructure issues could point to problems with cloud service providers such as Amazon or Microsoft.

Though none of the companies involved has yet to confirm a common denominator for the morning outages, Quartz reports that Microsoft Azure problems, which coincided with the outages, may have been a contributing factor.