Skywork-o1-Open-Llama-3.1-8B is a series of models developed by the Kunlun Technology Skywork team, integrating the slow thinking and reasoning capabilities characteristic of o1 style. This series showcases inherent thinking, planning, and reflective abilities in its outputs, alongside a significant enhancement in reasoning skills as evidenced by standard benchmark tests. This series represents a strategic advancement in AI capabilities, elevating a traditionally weaker foundational model to state-of-the-art performance in reasoning tasks.