It is at the centre of an extraordinarily-complicated mesh of financial agreements, justifying diagrams like this one published by Morgan Stanley last month (which will have only become more complicated now Amazon is involved): Who is its auditor?

Barclays analysts did a deep dive into OpenAI's growth and expansion prospects. Their findings suggest more support for AI infrastructure spending.

With the new ChatGPT for Teachers, users get full access to ChatGPT 5.1 Auto with unlimited messages, search, file uploads, connectors, and image generation, as well as educator-specific onboarding, admin controls, and personalized prompts. The features have already rolled out to 150,000 teachers and staff across U.S. school districts, says OpenAI.

Larry Summers has held top jobs in academia, government, and finance. But Summers’s role as an advisor and board member at ChatGPT maker OpenAI might have been as consequential as any in his career.

OpenAI rolls out a free, secure ChatGPT for Teachers, giving every U.S. K–12 educator classroom-ready AI tools through 2027.

Nvidia made waves earlier this year when it announced a $100 billion investment in OpenAI, which will use 10 gigawatts worth of the company's systems. But its quarterly filing underscores that announcing something doesn't guarantee it will actually happen.

The Musk-led AI company has a lot of cash in the bank. But it still needs more—and more. It’s using some creative off-balance-sheet financing to get it.

A deal between Anthropic, Microsoft and Nvidia makes AI more circular