In January 2023, the National Institutes of Health (NIH) of the United States started requiring most of the 300,000 researchers and 2,500 institutions it funds annually to include a data management and sharing plan and to make research data publicly available. Towards this end, the NIH launched the Generalist Repository Ecosystem Initiative (GREI) with seven generalist repositories working together to support NIH data sharing and discovery through consistent metadata, common metrics, and training on using these repositories. During this presentation, our speakers will discuss:The GREI program, its mission, and goals What the GREI coopetition has accomplished to date and incorporated to support research transparency and how communities worldwide can benefit from these developments and models.How "co-opetition" amongst repositories is creating a model of data transparency, community, and sustainability others can implement.How researchers around the world can benefit from the program.