ChatGPT is working again after an outage took the world's best-known artificial intelligence (AI) tool offline.
Downdetector, a site that tracks website outages, showed that more than 10,000 people in the UK reported the AI chatbot, made by OpenAI, was not working on Thursday.
Users trying to access it saw a message saying "the web server reported a bad gateway error."
OpenAI stated on its status page that a fix was implemented at 15:09 GMT, and the company was "monitoring the results."
It has not yet publicly commented on the cause of the outage, which began around 11:00 GMT on Thursday.
However, many people took to social media to highlight the problem and the disruption it caused them. Some of those posting on X about the outage were able to see the humorous side of the situation.
"ChatGPT is down again? During the workday? So you're telling me I have to… THINK?!" joked one user.
ChatGPT's status page stated at the time that the app was "experiencing elevated error rates" and the company was "investigating."
Since its launch in November 2022, ChatGPT has sparked enormous global interest—and investment—in generative AI tools.
OpenAI CEO Sam Altman said that by December 2024, ChatGPT was used weekly by more than 300 million people worldwide.
While many people use the free version of the chatbot, the company charges up to $200 per month for its various membership tiers.
This comes after tech firms, including OpenAI, pledged a $500 billion (£405 billion) investment into AI infrastructure in the US.