Is Atomight-V2.2-UltraThink-0.5B-OBLITERATED or gemma-3-1b-it smaller?

Atomight-V2.2-UltraThink-0.5B-OBLITERATED is smaller at Q4_K_M: 0.37 GiB against 0.75 GiB.

Which uses less memory at long context?

gemma-3-1b-it — its KV cache at 32K context is 2.6x smaller, because of how its attention layers cache.

Model comparison

Atomight-V2.2-UltraThink-0.5B-OBLITERATED vs gemma-3-1b-it

At Q4_K_M, Atomight-V2.2-UltraThink-0.5B-OBLITERATED is the smaller download — 397,808,448 bytes against 806,058,240. At long context the gap widens: gemma-3-1b-it's KV cache at 32K is 2.6× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Atomight-V2.2-UltraThink-0.5B-OBLITERATED	gemma-3-1b-it
Parameters	494M	1000M
Architecture	qwen2	gemma3
Layers	24	26
Native context	32,768	32,768
Mixture of experts	no	no
Quantizations published	36	28
Smallest quantization	0.29 GiB	0.52 GiB
Q4_K_M	0.37 GiB	0.75 GiB
Licence	—	gemma

KV cache by context

the term that decides long-context viability

Context	Atomight-V2.2-UltraThink-0.5B-OBLITERATED	gemma-3-1b-it	Ratio
4,096	0.05 GiB	0.04 GiB	1.26×
8,192	0.09 GiB	0.05 GiB	1.78×
16,384	0.19 GiB	0.08 GiB	2.23×
32,768	0.38 GiB	0.15 GiB	2.56×
65,536	0.75 GiB	0.27 GiB	2.76×
131,072	1.50 GiB	0.52 GiB	2.88×