// RUN โ€” FITS

Can the Apple M1 Ultra 64GB run SANA 1.6B?

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

SANA 1.6B on the Apple M1 Ultra 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 806k 165-199 t/s ~2.1-2.5 (slow)
Q8 yes 831k 330.1-398.1 t/s ~4.1-5 (slow)
Q4 yes 842k 589.5-710.8 t/s ~7.4-8.9 (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 Ultra 64GB run SANA 1.6B?โ–ถ

Yes. At Q4 it generates ~589.5-710.8 tok/s and fits up to 842k context; beyond that it spills to SSD swap and slows to ~7.4-8.9 tok/s.

How much context fits?โ–ถ

At Q4, up to about 842k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.