Artificial Intelligence (AI) is rapidly transforming the scholarly communications landscape and reshaping how repositories are defining “Open to All”. Faced with challenges to their core missions, repositories are re-examining their fundamental commitment to “open”. Grappling with affronts to research integrity, eroding trust in the ecosystem, and evolving questions of authorship and ethics, repositories must understand their role in this new frontier and how to muster their responses to it. The moderated panel highlights the perspectives of three repository stewards tasked with managing this whirlwind of change. The first “open repository”, arXiv, is mounting new defenses and new offensive maneuvers as they deal with a ballooning onslaught of AI-generated content, authorship rings, and citation scams. The University of Edinburgh Library manages in-house Archipelago and DSpace repositories and hosts DSpace repositories across Scotland. They are proactively addressing AI to maintain the uptime of their repositories and are currently working on new licensing policies. CoSector, which develops for and hosts Samvera and EPrints repositories, is navigating the myriad of client AI perspectives in its support of multiple repositories. The audience is invited to share their perspectives on standing firm on the commitment to openness while combating the forces that threaten that ideal.