On September 3, 2026, significant outages affected leading AI models from Anthropic, OpenAI, and xAI, rendering their services unavailable for users. This was particularly notable as the outages occurred simultaneously across multiple platforms, triggering speculation about a shared cause, potentially linked to a common third-party service provider. However, neither OpenAI nor Anthropic confirmed any external issues.
According to a spokesperson from OpenAI, a routing error beginning at approximately 7:43 AM PT caused disruptions to ChatGPT and Codex services. The company noted that services were back up by 8:17 AM PT after a fix was implemented.
Anthropic reported its own issues, alerting users to a "partial outage" on Claude’s services starting at 6:23 AM PT, and managed to resolve the problem by 9:16 AM PT after identifying and fixing the underlying cause. In contrast, xAI’s Grok faced outages beginning around 6:30 AM PT, but services were restored by 10:05 AM PT, when they reported that operations were back to normal.
There were also unverified reports suggesting a possible outage affecting Google Gemini, although the company did not acknowledge any incidents. Typically, simultaneous outages across different organizations often point to problems in external infrastructure like cloud service providers. However, major internet service providers did not report any issues on that day, leaving the cause of the outages for the AI services still unclear.
For further information, you can visit the respective statuses of Grok and OpenAI.
