// RUN โ€” FITS

Can the Apple M2 Ultra 192GB run Ling-flash-base-2.0-20T?

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

Ling-flash-base-2.0-20T on the Apple M2 Ultra 192GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 218k 5.4-6.6 t/s ~0.1-0.1 (slow)
Q4 yes 352k 9.7-11.7 t/s ~0.1-0.1 (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 M2 Ultra 192GB run Ling-flash-base-2.0-20T?โ–ถ

Yes. At Q4 it generates ~9.7-11.7 tok/s and fits up to 352k context; beyond that it spills to SSD swap and slows to ~0.1-0.1 tok/s.

How much context fits?โ–ถ

At Q4, up to about 352k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.