The next surprise was that human organoids just kept growing. Mouse organoids were done with making neurons within nine days.

Concussions are a common injury, responsible for as many as 3 million emergency room visits every year. Children playing ...

A mere two days after announcing GPT-4.1, OpenAI is releasing not one but two new models. The company today announced the public availability of o3 and o4-mini. Of the former, OpenAI says o3 is its ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

OpenAI on Friday released o3-mini, an AI model that focuses on improved reasoning capabilities at a more modest cost than its predecessor. Why it matters: The announcement of the new model follows ...

OpenAI's new GPT-5.4 mini model offers performance improvements in reasoning, multimodal understanding and more.

Over the last week, OpenAI’s place atop the AI model hierarchy has been heavily challenged by Chinese model DeepSeek. Today, OpenAI struck back with the public release of o3-mini, its latest simulated ...