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Hardware guide · LFM

LF What hardware do you need to run LFM2.5 1.2B Thinking?

LFM2.5 1.2B Thinking needs about 1.8 GB to run at Q4_K_M, so the lightest hardware that runs it is iPhone 15 Pro. 40 of 40 devices tested can run it.

Needs (Q4_K_M)
~1.8 GB
Devices that run it
40
Too small
0
Lightest that runs it
~4.5 GB
Recommended Q4_K_M
iPhone 15 Pro Yes

Runs at Q4_K_M using ~1.8 GB of ~4.5 GB usable. You have room for FP16 for higher quality.

What kind of hardware runs LFM2.5 1.2B Thinking

Of the 40 devices that run it, here is the split by hardware class.

9 discrete GPUs 14 Macs 3 laptops 14 phones

Hardware that runs LFM2.5 1.2B Thinking

Ranked by usable memory, lightest first. Prices are approximate street prices for the device itself (a GPU is the card alone; a Mac is the whole machine). Tok/s is a bandwidth estimate; see methodology.

Compatible devices 40 total

See the full LFM2.5 1.2B Thinking memory breakdown, or compare it against other models.

Sources

Memory at Q4_K_M (1.8 GB = 0.68 GB weights + KV cache + overhead), validated 2026-08-03. See methodology.