Can I run this LLM?
Can a MacBook Air / Mac mini M1 (8GB) run LFM2.5 1.2B?
LFM · See model card · estimated for a 8.0 GB machine at 4K context.
Yes — it runs great.
Runs greatBest fit: LFM2.5 1.2B at FP16 · 2.3 GB weights · 17–26 tok/s on a MacBook Air / Mac mini M1 (8GB).
Arena Text Overall · style-controlled
UnratedNo exact matchNo 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
- 3.2 GB
- Weights + KV cache + runtime overhead
- Estimated generation
- 17–26 tok/s
- Estimated first token
- ~5.5s
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.
| Quant | Weights | Total memory | Speed | Fit |
|---|---|---|---|---|
| Q4_K_M | 0.7 GB | 1.6 GB | 44–66 tok/s | Runs great |
| Q5_K_M | 0.8 GB | 1.7 GB | 40–59 tok/s | Runs great |
| Q6_K | 1.0 GB | 1.8 GB | 36–54 tok/s | Runs great |
| Q8_0 | 1.3 GB | 2.1 GB | 29–44 tok/s | Runs great |
| FP16 | 2.3 GB | 3.2 GB | 17–26 tok/s | Runs great |
Ran LFM2.5 1.2B on a MacBook Air / Mac mini M1 (8GB)? Add your real numbers →