Model comparison

HunyuanVideo-I2V vs Sulphur-2-base

At Q4_K_M, Sulphur-2-base is the smaller download — 5,629,108,608 bytes against 7,883,680,512.

From the file· summed bytes, KV per layer

Side by side

HunyuanVideo-I2VSulphur-2-base
Parameters12.8B9.2B
Architecturehyvidltxv
Layers
Native context
Mixture of expertsnono
Quantizations published2413
Smallest quantization2.96 GiB5.07 GiB
Q4_K_M7.34 GiB5.24 GiB
Licenceother

KV cache by context

the term that decides long-context viability
ContextHunyuanVideo-I2VSulphur-2-baseRatio
4,096
8,192
16,384
32,768
65,536
131,072