OpenAI delays launch of voice assistant, citing safety testing

OpenAI first added the ability for ChatGPT to speak in a one of several synthetic voices, or "personas," late last year. The demo in May used one of those voices to show off a newer, more capable AI system called GPT-4o that saw the chatbot speak in expressive tones, respond to a person's tone of voice and facial expressions, and have more complex conversations. One of the voices, which OpenAI called Sky, resembles the voice of an AI bot played by Johansson in the 2013 movie "Her," about a lonely man who falls in love with his AI assistant.