The AI Wealth Adviser Built for the Brazil That Nubank Never Served.

Wealth management in Brazil has a structural ceiling. Advisory firms charge fees that work at R$500,000 in assets but not at R$30,000. A human adviser covering 150 clients cannot profitably onboard someone with three months of salary saved. That math has held for decades. AI changes the denominator.

Brazil's Open Finance system — the Central Bank's framework, active since 2021, that lets consumers share banking, investment, and credit data across institutions with a single consent — is what makes AI-native wealth advisory economically viable for the first time. A platform plugging into that feed doesn't gather data from scratch; it inherits a user's complete financial picture at the moment of onboarding.

Decade, founded this week by Vitor Olivier (former Nubank CTO, who helped build the world's largest digital bank from the ground up) and Felipe Meneses (Thiel Fellow, founder of Hyperplane AI, which Nubank later acquired), raised $85 million in what Business Wire reports as Latin America's largest-ever seed round. Greenoaks, Benchmark, and Diffusion backed the company. The platform pairs each client with a human adviser and a proprietary AI model that tracks their full financial picture through Open Finance.

According to Decade's own market data, around 33% of Brazilians hold any investment product; fewer than 10% are on a path to retire on their own savings. That gap exists not because Brazilians are indifferent to wealth but because the industry built to help them was never designed to serve them. An AI platform with near-zero marginal cost per client can reach that tier for the first time.

The moat Decade is building is not the advisory model itself. Frontier AI is widely available; any large bank can pay for API access. The moat is the proprietary dataset that accumulates as users share more financial context over time. In consumer finance, models trained on real behavioral data — spending patterns, income variability, risk tolerance shifts — outperform generic models by a growing margin. That advantage compounds with scale.

Two structural risks are worth naming. First, trust. Brazilian consumers adopted Pix and digital banking because each delivered an obvious, immediate benefit. Handing an AI your full income, debts, and spending picture is a different order of trust ask. Second, incumbents: Itaú, Bradesco, and XP have distribution advantages that AI architecture alone cannot overcome. Decade needs to acquire clients faster than established players can rebuild their models.

Open Finance was designed to move data, not to solve wealth management. But every infrastructure layer eventually attracts its highest-value application — Pix attracted credit origination; Open Finance may attract AI wealth advisory. The question is whether Decade can turn a data feed into a durable business before the companies that already own the relationships figure out how to build the model.