Is Qwen3.5-4B or gemma-3n-E4B-it smaller?

Qwen3.5-4B is smaller at Q4_K_M: 2.52 GiB against 3.95 GiB.

Which uses less memory at long context?

gemma-3n-E4B-it — its KV cache at 32K context is 2.0x smaller, because of how its attention layers cache.

Model comparison

Qwen3.5-4B vs gemma-3n-E4B-it

At Q4_K_M, Qwen3.5-4B is the smaller download — 2,707,513,696 bytes against 4,237,064,064. At long context the gap widens: gemma-3n-E4B-it's KV cache at 32K is 2.0× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Qwen3.5-4B	gemma-3n-E4B-it
Parameters	4.7B	7.8B
Architecture	qwen35	gemma3n
Layers	32	35
Native context	262,144	32,768
Mixture of experts	no	no
Quantizations published	57	38
Smallest quantization	1.42 GiB	2.57 GiB
Q4_K_M	2.52 GiB	3.95 GiB
Licence	apache-2.0	gemma

KV cache by context

the term that decides long-context viability

Context	Qwen3.5-4B	gemma-3n-E4B-it	Ratio
4,096	0.13 GiB	0.11 GiB	1.14×
8,192	0.25 GiB	0.16 GiB	1.52×
16,384	0.50 GiB	0.27 GiB	1.83×
32,768	1.00 GiB	0.49 GiB	2.03×
65,536	2.00 GiB	0.93 GiB	2.15×
131,072	4.00 GiB	1.80 GiB	2.22×