Many fears of an AI bubble had hit a fever pitch at the start of this year when Chinese start-up DeepSeek released a competitive reasoning model.

A company with a chatbot that often gets things wrong is somehow about to become the largest unicorn earth has ever seen. That does feel frothy.

In an interview with reporters from multiple publications on Thursday night, OpenAI CEO Sam Altman said he believes the AI sector has entered the territory of a financial bubble.