Alibaba Intelligent Engine Algorithm Platform Team

The Algorithm Platform team of Alibaba Holding Group's Intelligent Engine Business Unit builds Alibaba Group's model training infrastructure and is responsible for data and training Infra for the HappyHorse and HappyOyster model families. The team maintains industry-leading pre-training and post-training frameworks for large language models, multimodal models, and generative models, together with sample storage and compute systems. Open source projects include Megatron-LLaMA, ROLL, and RecIS. The team has published multiple works at top conferences including NSDI, OSDI, and SIGMOD, and received the 2026 NSDI Outstanding Paper Award. Through distributed optimization, software-hardware co-design, and model-Infra codesign, the team optimizes large model iteration efficiency from data processing through training, expands the ceiling of model quality, and builds frontier infrastructure for large models.