Model comparison

FLUX.2-klein-4B vs Z-Image-Turbo

At Q4_K_M, FLUX.2-klein-4B is the smaller download — 2,497,280,416 bytes against 4,981,532,736.

From the file· summed bytes, KV per layer

Side by side

FLUX.2-klein-4BZ-Image-Turbo
Parameters3.9B6.2B
Architecturefluxlumina2
Layers
Native context
Mixture of expertsnono
Quantizations published2130
Smallest quantization1.70 GiB2.41 GiB
Q4_K_M2.33 GiB4.64 GiB
Licenceapache-2.0apache-2.0

KV cache by context

the term that decides long-context viability
ContextFLUX.2-klein-4BZ-Image-TurboRatio
4,096
8,192
16,384
32,768
65,536
131,072
FLUX.2-klein-4B vs Z-Image-Turbo — size, memory and hardware fit — ossmodeldb