GPTQ-2D Reduces Quantization Error via Two-Sided Adaptive Rounding
July 28, 2026
GPTQ-2D implements cubic-time two-sided adaptive rounding for weight quantization. It treats the rounding task as a quadratic metric using a Kronecker product Gram matrix to maintain identical rounded matrices to the one-sided version.
HOW THIS AFFECTS YOU
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builderYou may see improved model performance at low bit-widths using two-sided adaptive rounding.
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researcherThis advances the mathematical precision of matrix rounding for model quantization.