ChatGPT maker OpenAI has confidentially filed for a U.S. initial public offering, joining rivals like Anthropic in seeking public market access. The company did not disclose specific terms or timing.

ChatGPT maker OpenAI has confidentially filed for a US initial public offering, the company said on Monday, joining rivals such as Anthropic in a race towards public markets amid surging investor interest in artificial intelligence. The firm did not disclose terms or timing.