Wall Street analysts are confident the artificial intelligence boom still has room to run. Even if Sam Altman, the OpenAI chief executive at the center of it all, appears less confident.

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.

OpenAI CEO Sam Altman thinks that the billions of dollars invested in AI now could create a bubble similar to the dot-com crash of the early 2000s. "Are we in a phase where investors as a whole are overexcited about AI?