Model comparison

HunyuanVideo vs LTX-2

At Q4_K_M, HunyuanVideo is the smaller download — 7,883,680,512 bytes against 12,840,118,752.

From the file· summed bytes, KV per layer

Side by side

HunyuanVideoLTX-2
Parameters12.8B18.9B
Architecturehyvidltxv
Layers
Native context
Mixture of expertsnono
Quantizations published2728
Smallest quantization5.67 GiB7.48 GiB
Q4_K_M7.34 GiB11.96 GiB
Licenceother

KV cache by context

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