// RUN โ€” FITS

Can the Apple M4 Max 64GB run GenSLM?

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

GenSLM on the Apple M4 Max 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 23k 7.4-9 t/s ~0.1-0.2 (slow)
Q8 yes 119k 14.9-17.9 t/s ~0.3-0.3 (slow)
Q4 yes 161k 26.5-32 t/s ~0.5-0.6 (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 64GB run GenSLM?โ–ถ

Yes. At Q4 it generates ~26.5-32 tok/s and fits up to 161k context; beyond that it spills to SSD swap and slows to ~0.5-0.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 161k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.