Model comparison

CHEETAH-350M-Merged-FP16 vs LFM2.5-230M

At Q4_K_M, LFM2.5-230M is the smaller download — 153,406,048 bytes against 231,031,616.

From the file· summed bytes, KV per layer

Side by side

CHEETAH-350M-Merged-FP16LFM2.5-230M
Parameters354M230M
Architecturelfm2lfm2
Layers1614
Native context128,000128,000
Mixture of expertsnono
Quantizations published4725
Smallest quantization0.10 GiB0.10 GiB
Q4_K_M0.22 GiB0.14 GiB
Licenceotherother

KV cache by context

the term that decides long-context viability
ContextCHEETAH-350M-Merged-FP16LFM2.5-230MRatio
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×