Starting this afternoon, all existing OpenAI API developers "with a history of successful payments" can access GPT-4. GPT-4 can generate text (including code) and accept image and text inputs -- an improvement over GPT-3.5, its predecessor, which only accepted text -- and performs at “human level” on various professional and academic benchmarks. Like previous GPT models from OpenAI, GPT-4 was trained using publicly available data, including from public web pages, as well as data that OpenAI licensed.