Brazil has formally aligned with a new global standard for artificial intelligence governance, becoming one of 29 signatories to the document creating the China-backed World Artificial Intelligence Cooperation Organization (WAICO). The move signals a policy preference for open-source AI models and 'digital sovereignty,' establishing a divergence from the prevailing US-led 'Pax Silica' model and introducing a new layer of geopolitical risk for major American technology players in the Brazilian market. This strategic choice, with WAICO operating out of Shanghai, is explicitly an effort to cultivate a global AI governance structure that is less beholden to the proprietary control of a small number of companies or nations.