ChatGPT, Grok, and Claude all went down at the same time

OpenAI’s ChatGPT, xAI’s Grok, and Anthropic’s Claude are back online after they all began experiencing issues around the same time on Thursday. At about 11AM ET, ChatGPT started returning error messages for users trying to use the chatbot, with its status page noting elevated errors. In addition to preventing conversations, the outage affected logins, file uploads, voice mode, search, deep research, and image generation. Anthropic’s Claude chatbot and API also went down around the same time due to an infrastructure issue causing a partial outage, which was subsequently resolved. Grok similarly began experiencing an outage across Android, iOS, and web, displaying overload messages. While xAI linked its issue to an outage at its Memphis data center, it remains unclear what went wrong at all three companies or if the issues were related.