Model comparison

LFM2-VL-1.6B vs LFM2.5-VL-1.6B

At Q4_K_M, LFM2-VL-1.6B is the smaller download — 730,894,016 bytes against 730,895,968.

From the file· summed bytes, KV per layer

Side by side

LFM2-VL-1.6BLFM2.5-VL-1.6B
Parameters1.6B1.6B
Architecturelfm2lfm2
Layers1616
Native context128,000128,000
Mixture of expertsnono
Quantizations published2623
Smallest quantization0.40 GiB0.45 GiB
Q4_K_M0.68 GiB0.68 GiB
Licenceotherother

KV cache by context

the term that decides long-context viability
ContextLFM2-VL-1.6BLFM2.5-VL-1.6BRatio
4,0960.05 GiB0.05 GiB1.00×
8,1920.09 GiB0.09 GiB1.00×
16,3840.19 GiB0.19 GiB1.00×
32,7680.38 GiB0.38 GiB1.00×
65,5360.75 GiB0.75 GiB1.00×
131,0721.50 GiB1.50 GiB1.00×