Is OLMo-2-1124-13B-Instruct or gemma-4-E4B-it smaller?

gemma-4-E4B-it is smaller at Q4_K_M: 4.64 GiB against 7.78 GiB.

Which uses less memory at long context?

gemma-4-E4B-it — its KV cache at 32K context is 49.4x smaller, because of how its attention layers cache.

Model comparison

OLMo-2-1124-13B-Instruct vs gemma-4-E4B-it

At Q4_K_M, gemma-4-E4B-it is the smaller download — 4,977,171,584 bytes against 8,354,349,888. At long context the gap widens: gemma-4-E4B-it's KV cache at 32K is 49.4× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	OLMo-2-1124-13B-Instruct	gemma-4-E4B-it
Parameters	13.7B	8.0B
Architecture	olmo2	gemma4
Layers	40	42
Native context	4,096	131,072
Mixture of experts	no	no
Quantizations published	21	36
Smallest quantization	4.28 GiB	3.30 GiB
Q4_K_M	7.78 GiB	4.64 GiB
Licence	apache-2.0	apache-2.0

KV cache by context

the term that decides long-context viability

Context	OLMo-2-1124-13B-Instruct	gemma-4-E4B-it	Ratio
4,096	3.13 GiB	0.12 GiB	25.40×
8,192	6.25 GiB	0.18 GiB	35.16×
16,384	12.50 GiB	0.29 GiB	43.54×
32,768	25.00 GiB	0.51 GiB	49.42×
65,536	50.00 GiB	0.94 GiB	53.00×
131,072	100.00 GiB	1.82 GiB	54.99×