Can I Run DeepSeek V4.1 Flash on Apple M5 Max?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated August 15, 2026

Not at Q4 (experimental) — that needs 171.5 GB and the Apple M5 Max has 128 GB. Drop to Q3_K_M and it fits in 122.4 GB, with up to 64K of context.

The numbers

Model	DeepSeek V4.1 Flash
Parameters	284B (13B active)
Quantization	Q4 (experimental)
VRAM needed	171.5 GB
Apple M5 Max VRAM	128 GB
Verdict	Runs at a lower quant
Fits at	Q3_K_M (122.4 GB)
Max context	64K

What to do next

Quantize to Q3_K_M. That is the cheapest fix — it costs some quality but no money.

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Running DeepSeek V4.1 Flash on this card:

Apple MacBook Pro M5 Max

128 GB VRAM · 35 W board power

2026 prices are volatile — check the current listing.

Check price on Amazon

Won't fit — rent DeepSeek V4.1 Flash instead

DeepSeek V4.1 Flash needs ~171 GB but this GPU has 128 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:

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RunPod $23.12/hr

Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

Other DeepSeek V4.1 sizes on the Apple M5 Max

DeepSeek V4.1 — does not fit (966.0 GB)

DeepSeek V4.1 Flash on nearby hardware

NVIDIA RTX PRO 6000 Blackwell (96 GB) — runs at a lower quant
Apple M2 Ultra (192 GB) — runs at a lower quant

All DeepSeek V4.1 sizes on the Apple M5 Max | VRAM calculator for DeepSeek V4.1 Flash | Apple M5 Max GPU page | Check your hardware