Grok 4.1 Fast

A new open-source benchmark framework, ParliamentBench, based on the social deduction game Secret Hitler, evaluates whether large language models (LLMs) can deceive, persuade, and reason under informa…

Jacky Liang, Dev Rel Lead at OpenRouter, dropped 11 large language models into a 2D battle royale game for 30 matches. Grok 4.1 Fast won 13 games at $0.97 per win, while Claude Sonnet 4.6 won 5 games …