The mysterious Hy3 LLM is topping OpenRouter Model Rankings by a large margin

A mysterious AI model called Hy3, made by Chinese tech giant Tencent, is suddenly outperforming Claude on OpenRouter's usage rankings by over 50%, despite having mediocre benchmark scores. The likely explanation remains unclear, though DeepSeek V4 Flash is actually cheaper when factoring in aggressive prompt caching that dramatically reduces real-world costs.