Arena CEO @ml_angelopoulos on what frontier labs have to do to react to DeepSeek, Qwen, and Kimi pricing this aggressively: "The thing that's most interesting about this is the price-performance trade-offs. The leaderboard shows you just the raw score, and it is true that Opus 5 Max, I believe it's even statistically significant, the difference between that and Kimi K3." "When you look at the cost performance trade-offs, for the most expensive tasks, it's still Anthropic that's number one.…