OpenAI’s GPT-5.3-Codex is 25 percent faster and requires less than half the tokens as its predecessor, 5.2-Codex.

Weekly cybersecurity recap covering emerging threats, fast-moving attacks, critical flaws, and key security developments you need to track this week.

As A.I. companies burn billions on computing power, ads are becoming the next frontier—and the next flashpoint. Indranil Aditya/NurPhoto via Getty Images The moment underscores how urgently large A.I.

Raffaele F Ciriello is a voluntary, temporary member of the eSafety Commissioner’s Parent Advisory Group, advising on caregiver and youth responses to Australia’s Social Media Minimum Age laws. This ...

The last time we did comparative tests of AI models from OpenAI and Google at Ars was in late 2023, when Google’s offering was still called Bard. In the roughly two years since, a lot has happened in ...

Two "easy-to-exploit" vulnerabilities in the popular open-source AI framework Chainlit put major enterprises' cloud environments at risk of leaking data or even full takeover, according to ...

Sam Altman greets Microsoft CEO Satya Nadella at OpenAI DevDay in San Francisco in 2023. (GeekWire File Photo / Todd Bishop) The launch of the AI lab that would redefine Microsoft caught the tech ...

A new report on Apple’s partnership with Google to have Gemini power the new Siri appears to confirm speculation that the iPhone maker is paying around a billion dollars a year for the deal. It also ...

Jerry Tworek, a vice president of research at OpenAI and a key figure in the company's work on AI reasoning models, is leaving the company after nearly seven years. Tworek announced his departure in a ...

Wrongful death lawsuits have put pressure on OpenAI to make ChatGPT safer for teens. Credit: SOPA Images / Contributor / LightRocket OpenAI has faced enormous pressure in recent months to address ...

OpenAI has quietly reversed a major change to how hundreds of millions of people use ChatGPT. On a low-profile blog that tracks product changes, the company said that it rolled back ChatGPT’s model ...

The clock is running out for investors looking to make last-ditch moves before the calendar flips to the new year. This week, the stakes are high as a barrage of delayed economic data, coupled with a ...