can-i-run-this-llm

Can I run this LLM?

Can a Mac Studio M1 Ultra (128GB) run Qwen3.8 Flash Next (MoE)?

Qwen · See model card · estimated for a 128.0 GB machine at 4K context.

Yes, but it's tight.

Best fit: Qwen3.8 Flash Next (MoE) at Q2_K · 80.9 GB · 90–135 tok/s on a Mac Studio M1 Ultra (128GB).

Every quantization on this machine

QuantSizeSpeedFit
Q2_K80.9 GB90–135 tok/sTight / slow
Q3_K_M92.0 GB85–127 tok/sWon't fit
Q4_K_M119.6 GB74–111 tok/sWon't fit
Q5_K_M134.7 GB69–103 tok/sWon't fit
Q6_K168.1 GB60–90 tok/sWon't fit
Q8_0188.3 GB56–84 tok/sWon't fit
FP16354.0 GB35–53 tok/sWon't fit

Ran Qwen3.8 Flash Next (MoE) on a Mac Studio M1 Ultra (128GB)? Add your real numbers →