tech
April 11, 2026
AI models are terrible at betting on soccer—especially xAI Grok
Systems from Google, OpenAI, Anthropic, and xAI struggle with the Premier League.

TL;DR
- Advanced AI models from Google, OpenAI, and Anthropic lost money when betting on Premier League soccer matches.
- The 'KellyBench' report tested eight AI systems in a virtual Premier League season, and all lost money.
- AI agents struggled to adapt to new events and player data over the season, underperforming humans.
- The study suggests a gap between AI's proficiency in static tasks and its ability to handle real-world complexity over long periods.
- Anthropic's Claude Opus 4.6 performed best, with an average loss of 11 percent.
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