Dispute Resolution 2026

BRAZIL Trends and Developments Contributed by: Eduardo Perazza, Glaucia Coelho, Débora Chaves Martines Fernandes and Agnes Domingues, Machado Meyer

justice. Clients should expect their counsel to under- stand the full environment in which their case will be processed. Second, the speed at which AI has been integrated into the judiciary alters the dynamics of case timelines. Proceedings that once languished for years in admin- istrative backlogs are now processed (and potentially dismissed) in a fraction of the time. Appellate strategy must account for this acceleration, for the window for interventions and strategic repositioning has narrowed considerably. Third, the choice of legal representation in com- plex disputes carries heightened significance. When standardised cases are efficiently processed by AI, the disputes that reach the merits are the ones that demand original argumentation, deep subject-matter expertise and experience before the specific court or tribunal. The growing distance between routine legal work (which AI can perform well) and high-complexity strategic advocacy (which it cannot) means that the selection of counsel is increasingly a decision about whether the dispute will receive the individualised attention required.

Finally, in arbitration and cross-border disputes, where proceedings are bespoke and tribunal discretion is broad, the integration of AI into case preparation is already a competitive advantage, but only when paired with counsel who can translate technological efficiency into persuasive advocacy. The Brazilian experience offers a revealing case study for an issue that is global in scope. A judiciary that has embraced AI with rare speed and ambition; a legal profession that has adopted it faster than most would have predicted; and a regulatory framework that is still catching up. In this environment, the practitioners who will stand out are those who understand most clearly where the utility of AI ends and where the irreducibly human work of strategic advocacy begins.

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