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Can I run this LLM?

Can a Laptop CPU, DDR5 dual-channel (16GB) run LFM2.5 2.6B?

LFM · See model card · estimated for a 16.0 GB machine at 4K context.

Yes, but it's tight.

Tight / slow

Best fit: LFM2.5 2.6B at Q4_K_M · 1.7 GB weights · 12–18 tok/s on a Laptop CPU, DDR5 dual-channel (16GB).

Arena Text Overall · style-controlled

UnratedNo exact match

No reviewed exact Arena match

No reviewed exact model/configuration match in the Arena Text Overall style-controlled snapshot. No family or editorial score is substituted. Local quantization quality is unmeasured.

Snapshot published 2026-10-08 · snapshot imported 2026-10-11 UTC · validated last-good data · manual refresh

Arena leaderboard dataset · Arena / lmarena-ai, Arena Leaderboard Dataset (CC BY 4.0). Selected Text Overall style-controlled rows; field names adapted, ratings unchanged. · dataset CC BY 4.0 · revision e16f90232986

Total memory at 4K context
2.5 GB
Weights + KV cache + runtime overhead
Estimated generation
12–18 tok/s
Estimated first token
~54s

Every quantization on this machine

On small screens, each quant lists every metric below its name. On wider screens, scroll sideways for total memory, speed and fit. Keyboard: focus the table, then use the arrow keys. Quant names stay visible.

LFM2.5 2.6B quantizations on Laptop CPU, DDR5 dual-channel (16GB), estimated at 4K context. Weights and total memory are shown separately.
QuantWeightsTotal memorySpeedFit
Q4_K_M1.7 GB2.5 GB12–18 tok/sTight / slow
Q5_K_M1.9 GB2.8 GB11–16 tok/sTight / slow
Q6_K2.2 GB3.1 GB9–14 tok/sTight / slow
Q8_02.9 GB3.7 GB8–11 tok/sTight / slow
FP165.4 GB6.3 GB4–6 tok/sTight / slow
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