// RUN โ€” FITS

Can the Apple M4 Max 48GB run Generative BST?

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

Generative BST on the Apple M4 Max 48GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 174k 19.7-23.7 t/s ~0.4-0.4 (slow)
Q8 yes 246k 39.4-47.5 t/s ~0.7-0.9 (slow)
Q4 yes 278k 70.3-84.8 t/s ~1.3-1.6 (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 48GB run Generative BST?โ–ถ

Yes. At Q4 it generates ~70.3-84.8 tok/s and fits up to 278k context; beyond that it spills to SSD swap and slows to ~1.3-1.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 278k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.