Model comparison

Z-Image-Turbo vs FLUX.1-dev

At Q4_K_M, Z-Image-Turbo is the smaller download — 4,981,532,736 bytes against 6,931,817,760.

From the file· summed bytes, KV per layer

Side by side

Z-Image-TurboFLUX.1-dev
Parameters6.2B11.9B
Architecturelumina2flux
Layers
Native context
Mixture of expertsnono
Quantizations published3037
Smallest quantization2.41 GiB3.75 GiB
Q4_K_M4.64 GiB6.46 GiB
Licenceapache-2.0other

KV cache by context

the term that decides long-context viability
ContextZ-Image-TurboFLUX.1-devRatio
4,096
8,192
16,384
32,768
65,536
131,072