Claude, Grok, and ChatGPT have consecutively experienced malfunctions and have not yet recovered

Several mainstream overseas AI services encountered issues tonight. Claude has already experienced two rounds of failures this evening. Sonnet 5 started showing errors at 20:37 Beijing time and announced recovery at 20:56; half an hour later, Anthropic reported a larger scope of multi-model error rate increase, affecting Mythos/Fable 5.1, Mythos/Fable 5, as well as Opus 5, 4.8, and 4.6. claude.ai, Claude API, Claude Code, and Claude Cowork are still in a partial failure state.

Subsequently, Grok also went down. xAI marked Grok Web as "outage" from 21:30 Beijing time, and recovery has not yet been announced.

Now OpenAI has also joined the list of failures. At 22:58 Beijing time, the OpenAI status page added an incident for "increased error rates for ChatGPT and Codex," stating that they are investigating the issue.