What to know

• OpenAI will not release its newest artificial intelligence model, known as Astra 6.1, after internal testing showed it did not meet safety standards, the company confirmed Monday.S1
• OpenAI said Monday it was delaying the release of a new artificial intelligence model out of security concerns voiced by its researchers, the latest in the company’s effort to decelerate the pace of the technology’s advance.OpenAI’s decision to hold back the m...S2