Tip: LLM Persuasion Benchmark Reveals Model-Specific Argumentation Strategies

GitHub / r/singularity·medium signal

lechmazur's new benchmark ran 6,296 round-robin persuasion dialogues across 15 models on 15 topics. GPT-5.4 (high reasoning) is the strongest persuader using a concession-first strategy that reframes disputes around mechanism and burden of proof. Claude Opus 4.6 (high reasoning) uses cooperative convergence — absorbs refinements, preserves face-saving landing zones, then treats convergence as support. Grok 4.20 Beta is the hardest model to move. Strongest persuaders perform better arguing the con side. Useful for anyone designing multi-agent debate or adversarial review systems.