because

1. as I just said "Openrouter rankings tend to be skewed by discounts and free models (like Minimax m3 is on a 50% discount) , both on openrouter or through apps like Kilo code which route through openrouter then provide a discount"
2. also as I said "Most us model users don’t go through Openrouter (most chinese probably don’t either, but the ratio is probably higher for us)."

There's several reasons for this. Openrouter providers easy provider switching and model discoverability in exchange for a 5% markup and some latency. Western models don't have many providers anyway, their users are generally not exploring other models as much so both those benefits go away. Companies, which (outside of china) overwhelmingly prefer going to providers themselves and doing enterprise level contracts instead of going through openrouter. They also prefer western models. Most open model usage comes through individuals trying to reduce costs and/or explore other models, which are going to be overrepresented on openrouter.