InternLM2, part of the 'Shusheng·Puyu 2.0' series, is a large-scale bilingual Chinese-English multilingual pre-trained language model. It boasts powerful capabilities in language understanding, natural language generation, multi-model reasoning, and code understanding. The model employs the Transformer architecture and has undergone extensive pretraining on a vast dataset, achieving industry-leading levels in long-text understanding, dialogue, mathematical calculations, and other areas. The series includes various scales, allowing users to select an appropriate model for downstream tasks, such as fine-tuning for specific applications or building chatbots.