Qwen3.8 125B (6B active) Flash-Next

User reports a third-party sourced prefill measurement of Qwen3.8-Flash-Next at 1057.53 t/s on a single Strix Halo 128GB system. Setup is Gufo with Unsloth UD-Q4_K_XL GGUF weights, a 256000-token prompt with zero cached prefix tokens, 512-token prefill chunks, and MTP enabled with a shared Q8 MTP head and draft ceiling 7. The row is prefill-only and generates one setup token, so no generation throughput is reported. One observation per cell on a synthetic counting workload; no repeats, uncertainty interval, TTFT or row-level memory peak are available.