OpenAI explained its text to speech tool for the second time in a few months, and again stressed that the tool is not yet widely open, and may not be in the future. "Whether we will eventually deploy this technology on a large scale or not, it is very important for people around the world to understand the development direction of this technology," said OpenAI in a statement released on its website on Friday, "That's why we want to explain how the model works, how we use it for research and education, and how we implement security measures around the technology."