Dolphin R1 is a dataset created by the Cognitive Computations team, aimed at training reasoning models similar to the DeepSeek-R1 Distill model. The dataset comprises 300,000 reasoning samples from DeepSeek-R1, 300,000 reasoning samples from Gemini 2.0 flash thinking, and 200,000 Dolphin chat samples. This combination provides researchers and developers with abundant training resources, enhancing model reasoning and dialogue capabilities. The creation of this dataset was supported by sponsors such as Dria, Chutes, and Crusoe Cloud, who contributed computational resources and funding. The release of the Dolphin R1 dataset offers a critical foundation for research and development in the field of natural language processing, fostering the advancement of related technologies.