Simultaneous Outage Affects ChatGPT, Claude, and Grok, Suspected Azure Dependency Failure

Thousands of users of major AI models including ChatGPT, Claude, and Grok experienced simultaneous outages on Thursday, September 3rd. Reports suggest a potential failure in a shared Microsoft Azure dependency, particularly in the East US region, which handles a large volume of AI processing traffic. While the services are now operational, the incident highlights the concentration risk in AI infrastructure.