Model comparison
gemma-4-12B-it-qat-q4_0-unquantized vs glm-4-9b-chat-1m
These two publish different quantization sets; the table below has the exact sizes. At long context the gap widens: gemma-4-12B-it-qat-q4_0-unquantized's KV cache at 32K is 8.1× smaller, which usually matters more than the difference in weights.
From the file· summed bytes, KV per layer
Side by side
| gemma-4-12B-it-qat-q4_0-unquantized | glm-4-9b-chat-1m | |
|---|---|---|
| Parameters | 12.0B | 9.5B |
| Architecture | gemma4 | chatglm |
| Layers | 48 | 40 |
| Native context | 262,144 | — |
| Mixture of experts | no | no |
| Quantizations published | 2 | 49 |
| Smallest quantization | 6.50 GiB | 3.69 GiB |
| Q4_K_M | — | 5.88 GiB |
| Licence | apache-2.0 | other |
KV cache by context
the term that decides long-context viability
| Context | gemma-4-12B-it-qat-q4_0-unquantized | glm-4-9b-chat-1m | Ratio |
|---|---|---|---|
| 4,096 | 0.72 GiB | 2.50 GiB | 3.48× |
| 8,192 | 0.97 GiB | 5.00 GiB | 5.16× |
| 16,384 | 1.47 GiB | 10.00 GiB | 6.81× |
| 32,768 | 2.47 GiB | 20.00 GiB | 8.10× |
| 65,536 | 4.47 GiB | 40.00 GiB | 8.95× |
| 131,072 | 8.47 GiB | 80.00 GiB | 9.45× |