OpenAI made some bold claims when it launched GPT-5, but is ChatGPT truly so much better now? I put it to the test.The Latest Tech News, Delivered to Your Inbox

The AI startup is chasing a $500 billion valuation, with backers betting it can become the next Apple or Google. There are reasons for skepticism.

OpenAI, the maker of ChatGPT, is in talks to sell $6 billion in shares owned by its current and former employees to investors, in a deal that would value the artificial intelligence company at roughly $500 billion, according to two people with knowledge of the discussions.

Citron Research, the firm led by short-seller Andrew Left, unpacked its bear case for Palantir, using OpenAI to show why it may be highly overvalued.

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 believes that, given all the AI hype from investors and capital expenditures, we're currently in an AI bubble. Altman made the statement during a conversation with The Verge and a handful of other reporters on Thursday.

"It was clear that if we didn't do it, the world was gonna be mostly built on Chinese open source models," Altman said.

With new tools and greater autonomy, OpenAI's flagship AI chatbot is more capable, and potentially more dangerous, than ever.

Current and former OpenAI employees plan to sell approximately $6 billion worth of shares to an investor group that includes Thrive Capital, SoftBank Group Corp. and Dragoneer Investment Group, in a deal that values the ChatGPT maker at $500 billion.

OpenAI is in talks for a $6B employee share sale valuing the ChatGPT maker at $500B, making it the world’s most valuable private company.