← Back to PeopleBCResearcherBerlin ChenResearcher at Princeton UniversityBerlin Chen is a researcher at the Hasson Lab at Princeton University.1Mentions1Articles1OutletsArticlesMost recent firstMentioned InReferenced in coverageMicrosoft's Dion3 optimizer cuts training step time by 6x over MuonarXivpositiveAug 14, 2026“Chen co-authored research on the Dion3 optimizer for reducing training step time.”