Is ultravox-v0_5-llama-3_2-1b or Llama-3.2-1B-Instruct smaller?

Llama-3.2-1B-Instruct is smaller at Q4_K_M: 0.75 GiB against 0.75 GiB.

Which uses less memory at long context?

Llama-3.2-1B-Instruct — its KV cache at 32K context is 8.0x smaller, because of how its attention layers cache.

Model comparison

ultravox-v0_5-llama-3_2-1b vs Llama-3.2-1B-Instruct

At Q4_K_M, Llama-3.2-1B-Instruct is the smaller download — 807,690,688 bytes against 807,694,464. At long context the gap widens: Llama-3.2-1B-Instruct's KV cache at 32K is 8.0× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	ultravox-v0_5-llama-3_2-1b	Llama-3.2-1B-Instruct
Parameters	683M	1.2B
Architecture	llama	llama
Layers	16	16
Native context	—	131,072
Mixture of experts	no	no
Quantizations published	2	39
Smallest quantization	0.75 GiB	0.39 GiB
Q4_K_M	0.75 GiB	0.75 GiB
Licence	mit	—

KV cache by context

the term that decides long-context viability

Context	ultravox-v0_5-llama-3_2-1b	Llama-3.2-1B-Instruct	Ratio
4,096	1.00 GiB	0.13 GiB	8.00×
8,192	2.00 GiB	0.25 GiB	8.00×
16,384	4.00 GiB	0.50 GiB	8.00×
32,768	8.00 GiB	1.00 GiB	8.00×
65,536	16.00 GiB	2.00 GiB	8.00×
131,072	32.00 GiB	4.00 GiB	8.00×