AnalysisDevelopersOctober 31, 2026

QEngine 1.3.1 hits 504 tok/s decoding Qwen3.8-Flash-Next on 2x RTX 5090

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QEngine v1.3.1 decoded Qwen3.8-Flash-Next at 504 tok/s single-stream on 2x RTX 5090, roughly 1.5-1.9x faster than the next-best engine the tester tried. The engine was originally built for 3x RTX 3090s and had to be compiled for the 5090s.

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