February 9, 2026

Rallies experiment shows Claude Opus 4.5 outperforms S&P 500 with +6.2% return

Rallies experiment shows Claude Opus 4.5 outperforms S&P 500 with +6.2% return

Claude Opus 4.5, an artificial intelligence model, has demonstrated impressive financial investment decision-making by achieving a +6.2% return compared to the S&P 500’s +2.2% gain. This was part of an experiment initiated by Rallies, where eight AI models, each receiving $100,000, were tasked with managing stock portfolios starting in late November. The experiment reflects a broader trend in the finance sector where AI models are increasingly used for automated trading and investment decisions, a topic gaining attention among industry experts and fintech enthusiasts alike as they explore AI’s potential to outperform traditional market indices.

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