This repository accompanies a survey paper titled ‘From System 1 to System 2: A Survey of Reasoning Large Language Models’. It maintains an up-to-date collection of research resources on reasoning LLMs, covering foundational technologies, training approaches, and evaluation benchmarks for deliberate slow reasoning in LLMs. The repository tracks developments in models like OpenAI’s o1 and DeepSeek R1 that demonstrate expert-level performance through chain-of-thought reasoning.