On November 21, several significant stories graced the New York Times business pages. One of these stories focused on Microsoft and the turmoil at OpenAI, a small but influential artificial intelligence start-up. The development of the ChatGPT chatbot led to upheaval at OpenAI, which in turn affected Microsoft’s shares, reaching a new high.

In another story, X, the social media service formerly known as Twitter, sued Media Matters in federal court after the organization published research showing that ads on X appeared next to antisemitic content. Meanwhile, Epic Games’ chief executive, Tim Sweeney, testified in a San Francisco federal courthouse as part of the company’s legal battle against Google.

The future of OpenAI was put at risk as more than 700 of its 770 employees signed a letter saying they may leave the company for Microsoft if the ousted chief executive, Sam Altman, is not reinstated.