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ChatGPT, Grok, and Claude experience simultaneous outage

#outage#chatgpt#claude#grok

On September 3, 2026, ChatGPT, Grok, and Claude all experienced outages simultaneously, with users reporting errors around 11AM ET. OpenAI confirmed elevated errors across ChatGPT and Codex, affecting logins, file uploads, voice mode, search, and more, and said it had applied a mitigation while monitoring recovery. Anthropic also reported errors across Opus 4.8 and Opus 5, with a spike in DownDetector reports.

Coverage timeline

  1. The Verge AIEmma Roth
    ChatGPT, Grok, and Claude all went down at the same time

    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 users from having conversations with ChatGPT, the outage is also affecting logins, file uploads, voice mode, search, deep research, image generation, and more. OpenAI says it has "applied a mitigation" and is "monitoring recovery," though its AI tools are still experiencing "degraded performance." The outage comes as OpenAI teases the launch of Astr … Read the full story at The Verge.

  2. Techmeme
    Claude, ChatGPT, and Grok are experiencing issues; Anthropic reports errors across Opus 4.8 and Opus 5, and OpenAI reports errors across ChatGPT and Codex (Ben Schoon/9to5Google)

    Ben Schoon / 9to5Google : Claude, ChatGPT, and Grok are experiencing issues; Anthropic reports errors across Opus 4.8 and Opus 5, and OpenAI reports errors across ChatGPT and Codex — A widespread outage has taken out popular AI platforms including ChatGPT, Claude, and Grok. — With a spike in reports on DownDetector …

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