Can I Run DeepSeek V4.1 Flash on Apple M2 Ultra?

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 M2 Ultra has 192 GB. Drop to Q3_K_M and it fits in 122.4 GB, with up to 128K of context.

The numbers

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

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 Mac Studio M2 Ultra

192 GB VRAM · 60 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 192 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 M2 Ultra

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

DeepSeek V4.1 Flash on nearby hardware

NVIDIA DGX Spark (128 GB) — runs at a lower quant

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