OpenAI ChatGPT Work and Microsoft Exchange Online Outages Disrupt Thousands
OpenAI's ChatGPT Work and Microsoft's Exchange Online experienced simultaneous service outages affecting thousands of users. ChatGPT Work suffered high error rates and latency for approximately three hours, while Exchange Online experienced performance degradation affecting email and related functions. Both companies confirmed the incidents and reported service restoration.
What happened
OpenAI's ChatGPT Work and Microsoft's Exchange Online both experienced service outages on the same day. ChatGPT Work experienced high error rates and connection latency problems lasting about three hours, affecting over 1,100 users. Exchange Online experienced performance degradation affecting approximately 4,600 users, who were unable to log in, send or receive emails, or sync mailboxes through Outlook and related services.
Both companies confirmed the outages and reported that affected services were restored. There is no evidence indicating the two incidents are related.
Reported impact
ChatGPT Work users with multiple subscription plans were temporarily unable to launch or continue executing tasks. Exchange Online users encountered performance issues while operating multiple Exchange functions.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.