How the voices for ChatGPT were chosen

OpenAI states that the five ChatGPT voices (Breeze, Cove, Ember, Juniper and Sky) were chosen through a five-month process with professional voice actors, casting directors and industry advisors, and that Sky's voice is not an imitation of Scarlett Johansson. In a May 20, 2024 statement, CEO Sam Altman said the Sky voice actor was cast before any outreach to Johansson, and that Sky's use had been paused out of respect for her. The article says a casting call on May 10, 2023 drew over 400 submissions, and Johansson declined an invitation to be a sixth voice in September 2023 through her agent.