OpenAI says it plans to halt the use of one of its ChatGPT voices after some users said it sounded like Scarlett Johansson, who famously voiced a fictional, and at the time futuristic, AI assistant in the 2013 film “Her.” In a post on the social media platform X Monday, OpenAI said it is “working to pause” Sky — the name of one of five voices that ChatGPT users can chose to speak with.