ChatGPT, Grok, and Claude all went down at the same time
ChatGPT, Claude, and Grok all down at once—what it tells us about AI service reliability.
Why it matters
A simultaneous outage across three major AI products highlights infrastructure fragility and shared dependencies that practitioners relying on these tools for production workflows need to understand and plan around.
The key facts
9 to knowChatGPT, Grok, and Claude experienced service degradation simultaneously around 11 AM ET
ChatGPT impacted: conversations, logins, file uploads, voice mode, search, deep research, image generation
OpenAI applied mitigation and reported monitoring recovery; tools still showing degraded performance at time of reporting
Outage affects multiple frontier AI products at once—suggests possible shared infrastructure or coordinated incident
ChatGPT, Grok, and Claude experienced simultaneous outages at ~11 AM ET on Sep 3, 2026
ChatGPT affected: elevated errors, failed logins, file uploads, voice mode, search, deep research, image generation
OpenAI applied mitigation and reported degraded performance (not full recovery at time of reporting)
Simultaneous outage across competitors raises infrastructure risk questions
Article published Sep 3, 2026 at 15:35 UTC (timing suggests ongoing or recently resolved issue)
Go to the source
The Verge AItheverge.com
Publisher excerpt: OpenAI's ChatGPT, xAI's Grok, and Anthropic's Claude are all experiencing issues. At around 11AM ET, ChatGPT started returning error messages for users trying to use the chatbot, with its status page saying there are currently "elevated errors across ChatGPT and Codex." In addition to preventing…