EurusPRM-Stage1 is part of the PRIME-RL project, which aims to enhance the reasoning capabilities of generative models through implicit process rewards. This model utilizes an implicit reward mechanism that doesn't require the additional labeling of process tags, allowing it to gain rewards during the reasoning process. Its key advantage is its ability to effectively improve the performance of generative models in complex tasks while reducing annotation costs. This model is suitable for scenarios that require complex reasoning and generation abilities, such as solving mathematical problems and generating natural language.