INT8 isn't the problem: I benchmarked samplers on INT8 flow models
YakovSava · reddit · 2026-11-04
A systematic test on Flux3-Klein, Krea 2, Moss-Image and Anima shows INT8 quantization is nearly harmless (LPIPS 0.014-0.029 vs bf16), while sampler choice matters far more. The author released ComfyUI custom nodes adding flowab2/ab3/ab4 samplers: 2nd-order Adams-Bashforth beats Euler at CFG 3+, and 3rd-order wins for distilled CFG 1 models.
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