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// RUN — FITS
Can the Apple M4 Max 128GB run GigaChat Lite (GigaChat-20B-A3B)?
Yes — here's how fast and up to what context, with real measured numbers.
GigaChat Lite (GigaChat-20B-A3B) on the Apple M4 Max 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 281k | 9.3-11.2 t/s | ~0.2-0.2 (slow) |
| Q8 | yes | 357k | 18.6-22.4 t/s | ~0.3-0.4 (slow) |
| Q4 | yes | 391k | 33.2-40 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 M4 Max 128GB run GigaChat Lite (GigaChat-20B-A3B)?▶
Yes. At Q4 it generates ~33.2-40 tok/s and fits up to 391k 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 391k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.