// RUN โ€” FITS

Can the Apple M1 Max 64GB run Yi-1.5-9B?

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

Yi-1.5-9B on the Apple M1 Max 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 293k 15.4-18.6 t/s ~0.4-0.5 (slow)
Q8 yes 361k 30.8-37.1 t/s ~0.8-0.9 (slow)
Q4 yes 390k 55-66.3 t/s ~1.4-1.7 (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 M1 Max 64GB run Yi-1.5-9B?โ–ถ

Yes. At Q4 it generates ~55-66.3 tok/s and fits up to 390k context; beyond that it spills to SSD swap and slows to ~1.4-1.7 tok/s.

How much context fits?โ–ถ

At Q4, up to about 390k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.