OpenAI's ChatGPT service experienced a temporary outage on September 3rd, affecting its ability to display replies. The issue lasted approximately one hour. OpenAI officials have identified the root cause and are actively working on a solution. Despite the disruption to ChatGPT, other OpenAI components, such as the API and Sora, continue to operate normally, and the Playground remains fully available. A specific timeline for full recovery has not been disclosed.