OpenAI has launched its latest model, GPT-4o, bringing enhanced speed and capabilities in text, voice, and vision tasks. Initially available to ChatGPT Plus and Team users, GPT-4o will also be accessible to Free users in a limited capacity. New tools for Free users include advanced data analysis, image discussions, and file uploads. A new macOS desktop app featuring voice functionalities is now available, with a Windows version coming soon. Additionally, ChatGPT will receive a redesigned interface to enhance user experience.