
Although Bing Chat uses the GPT-4 model from OpenAI to offer an AI chatbox experience that answers questions in a conversational human style, that's just part of the equation since, to make it all work, Microsoft had to develop a technology known as "Prometheus."
Prometheus is a proprietary AI model technology that combines the Bing search engine information (such as indexing, ranking, and other data) and the technology behind ChatGPT to generate relevant and accurate answers using current web information.