An information processing system includes one or more processors and one or more memories. The one or more memories store computer-executable instructions configured to, when executed by the one or more processors, cause the one or more processors to acquire a question for which an answer is generated by a first model that is a generative model, retrieve, from a collection of data, based on the question, information to be used by the first model for generating the answer to the question, and grant a royalty to a provider of the information used for the generation of the answer by the first model.