← Back to PeopleYBEngineerYan BaiDeveloper at verlYan Bai is an economist at the Development Data Group at the World Bank.1Mentions1Articles1OutletsCompanies CoveredApplied Compute1Inferact1Modal1OpenRLHF1Perplexity AI1Prime Intellect1SemiAnalysis1Thinking Machines Lab1verl1vLLM1ArticlesMost recent firstMentioned InReferenced in coverageSemiAnalysis on RL bottlenecksSemiAnalysisneutralJun 17, 2026“verl framework developer working on reinforcement learning infrastructure.”