Bespoke Curator is an open-source project that provides a rich Python-based library for generating and curating synthetic data. It features high-performance optimization, intelligent caching, and fault recovery, and can directly collaborate with HuggingFace Dataset objects. Key advantages of Bespoke Curator include its programmability and structured output capabilities, which allow for designing complex data generation pipelines and real-time checking and optimization of data generation strategies through the built-in Curator Viewer.