Colossal-AI

Colossal-AI is an open-source deep learning system designed to make large AI models cheaper, faster, and more accessible. It provides efficient parallel training strategies including ZeRO, tensor parallelism, pipeline parallelism, and data parallelism. Colossal-AI integrates with HPC-AI Cloud to offer instant access to enterprise-grade GPUs like NVIDIA H200 and B200, enabling users to train and scale models from 7B to 70B parameters and beyond with significant throughput gains (over 50% on B200 vs H200). It supports applications such as fine-tuning large models like DeepSeek 671B and optimizing video generation model development, and is backed by active development and community engagement.