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Can a M2 Ultra 64GB run LFM2.5 8B-A1B (MoE)?

Yes. LFM2.5 8B-A1B (MoE) fits in fast memory on M2 Ultra 64GB at Q8_0 (9.8 GB needed, 48.0 GB usable), about 301 tok/s (estimate).

Hardware: M2 Ultra 64GB · Model: LFM2.5 8B-A1B (MoE)

M2 Ultra 64GB has 64 GB of unified memory and 800 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 48.0 GB. LFM2.5 8B-A1B (MoE) (8.47B, 1B active, Liquid AI) at Q8_0 is a 9 GB download and needs 9.8 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size9 GB
Memory needed9.8 GB
Usable fast memory48.0 GB
Fitfits in fast memory
Estimated speed~301 tok/s (estimate)
Commandollama run lfm2.5:8b-a1b-q8_0
Open M2 Ultra 64GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

A project by OnDevice Labs · llms.txt