OpenAI's biggest moments in 2024 included lawsuits, Sam Altman's comeback, a historic funding round, and a legal fight with Elon Musk.

OpenAI announced a new family of AI reasoning models on Friday, o3, which the startup claims to be more advanced than o1 or anything else it has released.

Microsoft and OpenAI have had something of a symbiotic relationship, with the former giving billions of capital to a startup AI lab and in return gaining early access to cutting-edge models that are now baked into Microsoft’s suite of productivity software.

OpenAI’s board of directors has promised investors that it will restructure the organization within the next two years.

OpenAI’s efforts to develop its next major model, GPT-5, are running behind schedule, with results that don’t yet justify the enormous costs, according to

Microsoft has been working on adding internal and third-party artificial intelligence models to power its flagship AI product Microsoft 365 Copilot, in a bid to diversify from the current underlying technology from OpenAI and reduce costs,

Suchir Balaji, a former researcher at OpenAI who openly questioned the legality of its data-gathering practices, died by suicide, authorities said.

Private companies — especially those in tech — are raising billions of dollars to delay, and sometimes even shun, a path to public markets. These efforts are creating vast wealth for employees and early-stage stakeholders,

Suchir Balaji, a former OpenAI engineer and whistleblower who helped train the artificial intelligence systems behind ChatGPT and later said he believed those practices violated copyright law, has died,

Sam Altman finished the OpenAI "12 days of shipmas" with a reveal of ChatGPT o3 and a new method called deliberative alignment. Here's the big deal on this new technique.