The Short Version
The claim that AI can "consistently" outperform the stock market is not supported by the available evidence. While AI-driven strategies have shown impressive results in specific contexts — competition rankings, single strong years, and research frameworks — no source demonstrates durable, net-of-fees outperformance across multiple market regimes. Academic research and institutional analysis indicate that as AI adoption spreads, the very edges it exploits tend to erode through increased market efficiency, transaction costs, and crowding effects.