Summary
User reports Qwen3.8 Flash-Next decode at 47.6 t/s on Strix Halo 128GB, with prefill of 994 t/s at 2K context.
Setup is a custom Windows attempt with speculative decoding; prefill reaches 1,026 t/s at 8K and 1,015 t/s at 32K, and decode without speculation is 34.0 t/s short, 30.7 t/s at 32K and 28.6 t/s at 128K.
User compares against Linux and Windows results from Halogen, gufo, strix-alloy and strixllama, and reports 30/30 on a 68K truncation test. No repo shared yet.