Introducing KellyBench (2 minute read)
TLDR AI
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Generative AI
KellyBench evaluates sequential decision-making in sports betting by simulating the 2023-24 English Premier League season. Models like Claude Opus 4.6 and GPT-5.4 struggled, with none achieving positive returns, highlighting their limitations in adapting to long-term strategies. This underscores a need for complex environments enabling agents to learn from experience under uncertainty.