Local AI Advisor

Can Mac Pro M2 Ultra 192 GB run LFM2.5 24B-A2B?

192 GB unified · 800 GB/s memory bandwidth · LFM2.5 24B-A2B has 24B parameters (2B active per token).

Short answer

Yes, excellent for chat and comfortable or better for every workload we test.

Best quantization for chat: Q4_K_M (14 GB of weights) on LM Studio. Generation: 190–260 tok/s, leaving about 167 GB free for your other apps.

How it rates for each workload

Same model and machine, different jobs. Agents and long documents send far bigger prompts than chat, so they need much more speed and memory.

WorkloadVerdictQuantGenerationFirst replyContext
Chatwith Open WebUIExcellentQ4_K_M190–260 tok/sunder 1 s8KDetails
Coding questionswith ContinueExcellentQ8_0110–150 tok/s≈1 s16KDetails
Coding in a repositorywith AiderComfortableQ8_0100–130 tok/s≈4 s32KDetails
Agentic codingwith OpenCodeComfortableQ8_095–130 tok/s≈5 s32KDetails
Long documents (64K)with Open WebUIExcellentQ8_075–100 tok/s≈15 s64KDetails

Speeds are estimates calibrated against measured benchmarks on similar hardware. “First reply” is the time to read the workload’s opening prompt. How we calculate

Different tool, context size or workload?

These pages use typical settings. The full check models your exact setup.