ChatGPT, Grok, and Claude encountered problems at approximately the same time 3 in September. According to The Verge AI, around 11:00 Eastern Time, ChatGPT began returning error messages to users; its status page indicated an elevated number of errors for both ChatGPT and Codex.
Issues with Claude began during roughly the same period. Initially, the outage affected Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, and Opus 4.6; however, later, according to the provided data, the list narrowed to Opus 4.8 and Opus 5. The source headline also indicates that problems were observed with Grok.
For users, this signifies a simultaneous reduction in availability across several widely used chatbots. However, the source does not report on the cause of the outages, their duration, the number of affected users, or confirmation of a common technical cause.
editorial commentary
Why it matters
A likely consequence is that users will seek alternative services until availability is restored, but this is an assessment rather than a confirmed fact. The next observable signals will be updates from official status pages and statements from OpenAI, xAI, or Anthropic. Substantial uncertainty remains regarding the common cause, duration, and actual scale of the incident.