Model family · 10 sizes

LFM: which size runs locally?

LFM comes in 10 sizes, from 0.354B to 24B. The LFM2 350M is small enough for a phone, while the LFM2 24B-A2B wants a workstation. Here is each size with its Q4_K_M weight, the memory it needs, and the hardware that runs it.

Sizes: 10
Smallest: 0.354B
Largest: 24B
Runs from: 6GB

The LFM lineup

Smallest first Q4_K_M · min memory

"Needs" is the sourced minimum memory for Q4_K_M with a small context. Larger context needs more.

Which LFM fits your memory

6GB

Largest that fits: LFM3 Omni 2B (2.17B), best case on Nvidia GeForce RTX 2060 (6GB).

Yes

8GB

Largest that fits: LFM2.5 8B-A1B (8.3B), best case on Nvidia GeForce RTX 3060 Ti (8GB). Comfortable up to LFM3 Omni 2B (2.17B).

Tight

12GB

Largest that fits: LFM2.5 8B-A1B (8.3B), best case on Nvidia GeForce RTX 5070 (12GB).

Yes

16GB

Largest that fits: LFM2.5 8B-A1B (8.3B), best case on Nvidia GeForce RTX 5080 (16GB).

Yes

24GB

Largest that fits: LFM2 24B-A2B (24B), best case on Nvidia GeForce RTX 4090 (24GB).

Yes

32GB

Largest that fits: LFM2 24B-A2B (24B), best case on Nvidia GeForce RTX 5090 (32GB).

Yes

48GB

Largest that fits: LFM2 24B-A2B (24B), best case on Apple M5 Pro (48GB).

Yes

64GB

Largest that fits: LFM2 24B-A2B (24B), best case on Apple M4 Max (64GB).

Yes

128GB

Largest that fits: LFM2 24B-A2B (24B), best case on Apple M5 Max (128GB).

Yes

256GB

Largest that fits: LFM2 24B-A2B (24B), best case on Apple M3 Ultra (256GB).

Yes

Best case means the most capable device at that size (usually a discrete GPU). A Mac at the same size sits roughly one rung lower; see the per-size breakdown on each memory budget page.

FAQ

Which LFM size should I run locally?

Pick the largest size your memory allows. On 6GB (best case) up to LFM3 Omni 2B; On 8GB (best case) up to LFM2.5 8B-A1B; On 12GB (best case) up to LFM2.5 8B-A1B; On 16GB (best case) up to LFM2.5 8B-A1B; On 24GB (best case) up to LFM2 24B-A2B; On 32GB (best case) up to LFM2 24B-A2B; On 48GB (best case) up to LFM2 24B-A2B; On 64GB (best case) up to LFM2 24B-A2B; On 128GB (best case) up to LFM2 24B-A2B; On 256GB (best case) up to LFM2 24B-A2B. Smaller sizes run faster and leave headroom for context.

What is the smallest LFM model?

LFM2 350M at 0.354B parameters, about 0.45 GB on disk at Q4_K_M. It is the one to use on phones and 8 GB machines.

What is the largest LFM model and what does it need?

LFM2 24B-A2B at 24B (mixture of experts), about 13.43 GB at Q4_K_M. It fits a high-memory desktop GPU or Mac.

Understand the numbers

Short guides to the ideas behind LFM's memory and quant figures.

Sources

Memory figures are estimates at Q4_K_M. See methodology.