OpenBMB, short for Open Lab for Big Model Base, is dedicated to developing a comprehensive repository and toolkit for large-scale pre-trained language models. Its mission is to streamline the training, fine-tuning, and inference processes for models exceeding 10 billion parameters, thereby reducing the barriers to their adoption. By fostering an open-source community, OpenBMB aims to standardize, popularize, and practicalize big models, making them accessible to a broader audience. Key Features and Functionality: - BMTrain: Enhances the efficiency of training large models by optimizing memory utilization and supporting distributed training. - BMCook: Offers model compression techniques, including quantization, pruning, distillation, and MoEfication, to improve operational efficiency while maintaining over 90% of the original model's effectiveness. - BMInf: Enables low-cost, high-efficiency inference for large models, allowing models with over 10 billion parameters to run on single GPUs like the NVIDIA GTX 1060. - OpenPrompt: Provides a unified interface for prompt learning, facilitating the deployment of prompt learning algorithms for large models. - OpenDelta: Supports parameter-efficient fine-tuning of large models, achieving full fine-tuning effects by updating less than 5% of parameters. - ModelCenter: Implements pre-trained language models based on the BMTrain backend, supporting efficient, low-resource, and extendable model usage and distributed training. Primary Value and User Solutions: OpenBMB addresses the challenges associated with large-scale pre-trained language models by providing tools that enhance training efficiency, reduce computational resource requirements, and simplify the deployment process. Its suite of toolkits empowers developers and researchers to effectively utilize big models, fostering innovation and accelerating advancements in natural language processing. By lowering the barriers to entry, OpenBMB democratizes access to powerful language models, enabling a wider range of applications and solutions across various industries.