OpenAI recently released GPT-4, the latest natural language processing model in its GPT series. GPT-4 is a multimodal model, meaning it can take both text and image inputs and generate text outputs. GPT-4 is a generative pre-trained transformer, a type of large language model neural network, which is designed to perform various natural language processing tasks. GPT-4 is less biased than previous models and can produce text that looks like it is produced by a human due to its deep learning technique.