OpenAI's ChatGPT, Anthropic's Claude, and xAI's Grok experienced a simultaneous service outage on Thursday. [2, 5, 15] DownDetector recorded tens of thousands of reports for ChatGPT during the peak disruption. [1, 6] Google's Gemini also showed elevated error rates for some users, though Google did not confirm a full-scale outage. [3, 9]
Companies acknowledged issues across services including ChatGPT, Codex, and multiple Claude models on their status pages. [4, 6] The concurrent failures halted daily workflows for a vast number of global users and businesses. [8, 9] OpenAI applied a fix and is currently monitoring the platform's recovery. [1]