UPDATE 07/26/2026

These quants were made against wiki text raw rather than ubergarm's dataset. I am in the process of requanting with GGML_CUDA_NO_PINNED=1 ./build/bin/llama-imatrix -m /rulers/GLM5.2-GGUF/orig/GLM5.2-chris-00001-of-00033.gguf -f /rulers/ubergarm-imatrix-calibration-corpus-v02.txt -o /rulers/GLM5.2-imatrix-ubergarm.gguf --fit --dsa

This will take me days.

'ik_llama.cpp' imatrix quants of zai-org/GLM-5.2

These quants were made with the same scripts that Ubergarm used for his GLM5.1 quants. Many thanks to him!

Quant Perplexity against wiki.text.raw
IQ1 Final estimate: PPL over 565 chunks for n_ctx=512 = 4.4567 +/- 0.02620
IQ2 KS Final estimate: PPL over 565 chunks for n_ctx=512 = 3.7897 +/- 0.02148
IQ2 KL Final estimate: PPL over 565 chunks for n_ctx=512 = 3.1085 +/- 0.01690
IQ3 Final estimate: PPL over 565 chunks for n_ctx=512 = 2.8533 +/- 0.01529
IQ4 Final estimate: PPL over 565 chunks for n_ctx=512 = 2.7357 +/- 0.01445
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