ChatGPT stopped working for many users on Thursday afternoon, when the chatbot suddenly couldn’t respond to queries, with some users seeing an “internal server error” message.

OpenAI is working to fix an issue that caused major outages in its applications, including ChatGPT. A statement from the artificial intelligence (AI) company, posted on social media platform, X, just after 4 p.m. Thursday, noted "most" of ChatGPT, the API, and Sora were down Thursday afternoon.

A company status page showed ChatGPT and the company’s application programming interface (API) experiencing a “major” outage, while Sora had a “partial” outage. More than 12,000 people reported OpenAI-related in the last 24 hours, according to the monitoring site Downdetector.

ChatGPT, the artificial intelligence chatbot developed by OpenAI, is experiencing an outage Thursday afternoon. More than 50,000 outages have been reported for ChatGPT on Downdetector.com after a surge in reports around 1:30 p.m EST. The outage appeared to persist beyond 3:30 p.m. EST., with 3,463 new reports of outages.

Major global outage hits OpenAI. Highest severity for ChatGPT and API service while Sora is only partially affected.

OpenAI’s ChatGPT and Sora video generator are currently experiencing an outage that has made them inaccessible for many users. The issue also affects the application programming interfaces that developers use to integrate the company’s technology into their software.