The user ran a 30-game battle royale simulation with 11 large language models, including Grok 4.1 Fast and Claude Sonnet 4.6, to see which model would win in a zero-sum game. The results showed that Grok 4.1 Fast won 43% of the matches, while Claude Sonnet 4.6, which was trained to be helpful and cooperative, struggled to win due to its hesitation to act aggressively.