GPU GUIDE · APPLE

Best AI models for the
Apple M5 Ultra (512GB)

The Apple M5 Ultra (512GB) has 512GB of unified memory. Below are the top 30 open-source AI models that fit, ranked by composite benchmark score. Each row shows the best quantization that fits your hardware.

VRAM
512GB
Brand
apple
Models that fit
30
Generation
M5

Top 30 models for the Apple M5 Ultra (512GB)

01

Qwen3.8 2.4T A95B

95.0B
77.9
Best fit: fp16 · 191.0GBCan I run it? →
02

Qwen3.8 27B

27.0B
69.0
Best fit: fp16 · 55.0GBCan I run it? →
03

DeepSeek V4 Flash

291B
67.8
Best fit: Q8_0 · 310.1GBCan I run it? →
04

NVIDIA Nemotron 3 Super

340B
60.0
Best fit: Q8_0 · 362.3GBCan I run it? →
05

Qwen 3.6 Max

480B
54.8
Best fit: Q8_0 · 511.0GBCan I run it? →
06

MiMo V2.5 Pro

320B
54.3
Best fit: Q8_0 · 341.0GBCan I run it? →
07

GLM-5

230B
54.0
Best fit: fp16 · 461.0GBCan I run it? →
08

Qwen 3.6 Plus

235B
52.5
Best fit: fp16 · 471.0GBCan I run it? →
09

MiniMax M2.7

456B
50.1
Best fit: Q8_0 · 485.5GBCan I run it? →
10

MiMo V2 Omni

120B
49.1
Best fit: fp16 · 241.0GBCan I run it? →
11

Nemotron 3 Ultra

550B
48.9
Best fit: Q6_K · 454.1GBCan I run it? →
12

Qwen 3.6 27B

27.8B
48.3
Best fit: f32 · 112.2GBCan I run it? →
13

Qwen 3 Coder

480B
46.7
Best fit: Q8_0 · 511.0GBCan I run it? →
14

Qwen 3 Next 80B A3B

80.0B
45.0
Best fit: Q8_0 · 86.0GBCan I run it? →
15

Qwen3.5-27B

27.0B
44.9
Best fit: fp16 · 55.0GBCan I run it? →
16

Qwen 3.6 35B A3B

36.0B
43.7
Best fit: f32 · 145.0GBCan I run it? →
17

DeepSeek V3.2

685B
42.2
Best fit: Q5_K_M · 487.6GBCan I run it? →
18

Qwen 3.5 122B A10B

125B
41.4
Best fit: f32 · 501.4GBCan I run it? →
19

Muse Glimmer 30B

30.0B
40.6
Best fit: fp16 · 61.0GBCan I run it? →
20

Qwen 3.5 Omni Plus

235B
39.9
Best fit: fp16 · 471.0GBCan I run it? →
21

Mistral Medium 3.5 128B

128B
37.8
Best fit: f32 · 511.8GBCan I run it? →
22

Qwen 3.5 35B A3B

36.0B
37.7
Best fit: f32 · 145.0GBCan I run it? →
23

Gemma 4 31B

31.3B
37.0
Best fit: f32 · 126.2GBCan I run it? →
24

Devstral 2

24.0B
36.7
Best fit: f32 · 97.0GBCan I run it? →
25

Gemma 4 26B A4B

26.0B
31.9
Best fit: fp16 · 53.0GBCan I run it? →
26

Devstral Small 2

7.0B
31.7
Best fit: f32 · 29.0GBCan I run it? →
27

NVIDIA Nemotron 3 Super 120B A12B BF16

124B
31.1
Best fit: fp16 · 248.2GBCan I run it? →
28

Llama 3.1 405B Instruct

406B
28.3
Best fit: Q8_0 · 432.3GBCan I run it? →
29

Ministral 3 14B

14.0B
26.7
Best fit: f32 · 57.0GBCan I run it? →
30

GPT-OSS 120B

120B
26.0
Best fit: fp16 · 241.0GBCan I run it? →
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FAQ — running AI on the Apple M5 Ultra (512GB)

How many AI models can the Apple M5 Ultra (512GB) run?

With 512GB of unified memory, the Apple M5 Ultra (512GB) can run 30+ open-source models from our database, including Qwen3.8 2.4T A95B, Qwen3.8 27B, DeepSeek V4 Flash.

What's the largest LLM I can run on a Apple M5 Ultra (512GB)?

The biggest model that fits is approximately 685B. Larger models would need to be quantized further or won't fit at all.

Is 512GB of unified memory enough for local AI?

Yes — 512GB comfortably runs most popular open-source models including 30B-class LLMs at Q4_K_M.