// RUN โ€” FITS

Can the Apple M4 Max 128GB run Open-Assistant Llama2 70B SFT v10?

Yes โ€” here's how fast and up to what context, with real measured numbers.

Open-Assistant Llama2 70B SFT v10 on the Apple M4 Max 128GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 133k 5.3-6.4 t/s ~0.1-0.1 (slow)
Q4 yes 227k 9.5-11.4 t/s ~0.2-0.2 (slow)

Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.

FAQ

Can the Apple M4 Max 128GB run Open-Assistant Llama2 70B SFT v10?โ–ถ

Yes. At Q4 it generates ~9.5-11.4 tok/s and fits up to 227k context; beyond that it spills to SSD swap and slows to ~0.2-0.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 227k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.