// RUN โ€” FITS

Can the Apple M3 Max 36GB run minChatGPT?

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

minChatGPT on the Apple M3 Max 36GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 421k 62.2-75 t/s ~2.1-2.5 (slow)
Q8 yes 446k 124.5-150.1 t/s ~4.1-5 (slow)
Q4 yes 457k 222.3-268 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 M3 Max 36GB run minChatGPT?โ–ถ

Yes. At Q4 it generates ~222.3-268 tok/s and fits up to 457k 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 457k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.