Caio Vieira Machado is a Brazilian lawyer and social scientist working on AI governance, algorithmic fairness, platform regulation, and scientific disinformation.
His current research concerns AI incidents: how harms caused by AI systems are identified, classified, and responded to across borders. He is a Senior Associate in Global AI Governance at The Future Society, where he leads work on severe AI incident response and engages governments, the OECD, UNESCO, and national AI safety institutes. He holds PhDs from the University of Oxford, on scientific disinformation and health governance, and the University of São Paulo, on AI as adjudicatory infrastructure, along with master's degrees from Oxford and Université Paris 1 Panthéon-Sorbonne. With colleagues at Harvard SEAS, he has audited large language models for arbitrariness in content moderation and for principle-based alignment, published at FAccT. He co-founded and led Instituto Vero, a Brazilian nonprofit working on digital rights and disinformation.
