5 Key Updates in GPT-4 Turbo, OpenAIs Newest Model For comparison, OpenAI’s first model, GPT-1, has 0.12 billion parameters. In his livestream demo, Brockman gives GPT-4 a photo of a rough sketch for a website. In response, GPT-4 produces the code necessary to build that website from scratch. The text-to-speech model offers natural-sounding audio outputs, with multiple voice presets, enhancing accessibility and use cases …