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// RUN — FITS
Can the Apple M1 Max 32GB run ERNIE-4.5-21B-A3B?
Yes — here's how fast and up to what context, with real measured numbers.
ERNIE-4.5-21B-A3B on the Apple M1 Max 32GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | yes | 24k | 13-15.6 t/s | ~0.3-0.4 (slow) |
| Q4 | yes | 59k | 23.1-27.9 t/s | ~0.6-0.7 (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 Max 32GB run ERNIE-4.5-21B-A3B?▶
Yes. At Q4 it generates ~23.1-27.9 tok/s and fits up to 59k context; beyond that it spills to SSD swap and slows to ~0.6-0.7 tok/s.
How much context fits?▶
At Q4, up to about 59k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.