作者： Jakub Rusinowski · 最后更新： 2026年8月15日
Not at Q4 (experimental) — that needs 171.5 GB and the Apple M2 Ultra has 192 GB. Drop to Q3_K_M and it fits in 122.4 GB, with up to 128K of context.
| Model | DeepSeek V4.1 Flash |
| Parameters | 284B (13B active) |
| Quantization | Q4 (experimental) |
| VRAM needed | 171.5 GB |
| Apple M2 Ultra VRAM | 192 GB |
| Verdict | Runs at a lower quant |
| Fits at | Q3_K_M (122.4 GB) |
| Max context | 128K |
Quantize to Q3_K_M. That is the cheapest fix — it costs some quality but no money.
Running DeepSeek V4.1 Flash on this card:
DeepSeek V4.1 Flash needs ~171 GB but this GPU has 192 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:
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All DeepSeek V4.1 sizes on the Apple M2 Ultra | VRAM calculator for DeepSeek V4.1 Flash | Apple M2 Ultra GPU page | Check your hardware