Dense vs MoE: Claude Opus 4.5 vs Kimi K2.5

The Setup I wanted to see if two AI models could have a genuine technical debate — and whether one could be argued into conceding a point. So I picked a topic guaranteed to be personal: I asked Claude Opus 4.5 (a dense transformer) to argue that dense models are architecturally superior to Mixture-of-Experts models, against Kimi K2.5 (a 1T parameter MoE model with 32B active parameters from…