OpenAI's reasoning AI models are getting better, but their hallucinating isn't, according to benchmark results.

OpenAI’s o3 and o4-mini models are available now to ChatGPT Plus, Pro, and Team users. Enterprise and education users will ...

OpenAI, xAI, Meta, and other companies are trying to add an AI element to the most human activity of all: being part of a ...

In 27 months, OpenAI has captured the lion's share of the AI market, and it has managed to one-up itself with every product ...

OpenAI is seeking data center talent as it reduces its reliance on Microsoft and ramps up its own infrastructure ambitions.

OpenAI has released two AI “reasoning” models that it says are its most capable yet as well as an open-source AI agent that ...

On Wednesday, OpenAI announced the release of two new models—o3 and o4-mini—that combine simulated reasoning capabilities ...

Ahead of o3 and o4-mini, OpenAI says it created a new system to block prompts related to risky biological and chemical ...

OpenAI is rolling out a pair of new artificial intelligence models that mimic the process of human reasoning to field more ...

OpenAI chair Bret Taylor says AI will shake up jobs — and workers who rely on old tools may be left behind.

The reasoning systems are based on a technology called large language models, or L.L.M.s. To build reasoning systems, ...

Following the recent launch of a new family of GPT-4.1 models, OpenAI released o3 and o4-mini on Wednesday, the latest ...