In closing arguments, a lawyer for Elon Musk hammered the credibility of Sam Altman, OpenAI’s chief executive. An OpenAI lawyer argued that Mr. Musk’s case against the company, which he co-founded, ...

Here’s what we learned from Elon Musk’s testimony, and what to expect this week. This story originally appeared in The Algorithm, our weekly newsletter on AI. To get stories like this in your inbox ...

Elon Musk, who split from OpenAI years after cofounding it as a nonprofit in 2015, said it was putting commercial interests over the public’s. A company lawyer said Mr. Musk had sued because he did ...