Topsort T-Brain reports a 21% retrieval lift

Topsort introduced T-Brain, a commerce-specific foundation model, and reports 21% better retrieval and 26% higher conversion in early production deployments. The launch announcement says the model was built from billions of decisions across more than 100 marketplaces and covers search, ranking, recommendations, advertising, and agentic commerce. Commerce teams should treat the figures as vendor-reported, select-customer evidence and test paid orders, returns, latency, and catalog drift before replacing a ranking stack; the archive’s Flipkart checkout analysis makes the same distinction between a live commerce experiment and a proven funnel.