ChatGPT, Gemini, Claude face widespread outages; AWS also hit Major AI platforms, including OpenAI's ChatGPT, Google Gemini, and Anthropic's Claude, experienced significant service disruptions on Thursday, affecting thousands of users globally, according to outage tracking website Downdetector. OpenAI acknowledged issues across ChatGPT and Codex, while Anthropic identified the cause of elevated errors on Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5, with only Opus 4.8 and Opus 5 still affected. The outage also impacted Grok and Amazon Web Services (AWS).