Microsoft and OpenAI Report User Outages for Outlook and ChatGPT Work

08/31/2026, 12:37 PM announcement Microsoft

On Monday, both OpenAI and Microsoft faced significant outages affecting their services, with OpenAI's ChatGPT Work experiencing elevated errors and latency for about three hours, impacting users across various subscription plans. Concurrently, Microsoft reported issues with Exchange Online, with nearly 4,600 users affected.

OpenAI acknowledged the problem on its status page and through its ChatGPT account on X, stating they were working on a fix. This incident is notable as it highlights the operational challenges both companies face, especially as OpenAI's ChatGPT Work, launched in July, competes directly with Anthropic's Claude Cowork.

The relationship between OpenAI and Microsoft has evolved from a significant investment of $1 billion in 2019 to $13 billion, indicating a deepening strategic partnership, yet they are now also competitors in the AI space. The outages could potentially affect user trust and satisfaction, impacting both companies' market positions and future growth in the AI and productivity sectors

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