llmrun

Apple · M5 Max · Laptop

Best AI Models for MacBook Pro 16" M5 Max (128 GB)

Runs 27–31B and 120B MoE models well; dense 70B fits but is slow at 9 tok/s.

128 GB unified124.5 GB for models614 GB/s68 TFLOPS FP162026
Buyabout $5,399

What LLMs can the MacBook Pro 16" M5 Max run?

#ModelSpeedllmrun ScoreQuant · Memory
1
Q4_K_M · 17.9 GB · 24.7 t/s
24.7 tok/sQ4_K_M · 17.9 GB
2
Q4_K_M · 17.9 GB · 24.7 t/s
24.7 tok/sQ4_K_M · 17.9 GB
3
Q4_K_M · 21.7 GB · 21.1 t/s
21.1 tok/sQ4_K_M · 21.7 GB
4
Q4_K_M · 16.5 GB · 80.7 t/s
80.7 tok/sQ4_K_M · 16.5 GB
5
Q4_K_M · 19.3 GB · 72.7 t/s
72.7 tok/sQ4_K_M · 19.3 GB
See all 401 models on the MacBook Pro 16" M5 Max →Bars = traction for models without a Score yet

About the MacBook Pro 16" M5 Max (128 GB)

The MacBook Pro 16" M5 Max is one of the fastest 128 GB machines: it runs 27–31B and 120B MoE models well. Among 128 GB machines, only the M1 Ultra and M2 Ultra write faster. macOS keeps about 3.5 GB, leaving 124.5 GB for models. With 68 TFLOPS it reads long prompts faster than most 128 GB machines: a 4K-token prompt takes 17 s. At its $5,399 MSRP it gives 12.6 tok/s per $1,000, 5th of the 6 machines compared here. M5 Max generation, released 2026.

Speed in 128 GB#3614 GB/s
Prompt reading#368 TFLOPS
For models124.5 GBmacOS keeps 3.5 GB
ChipM5 Maxreleased 2026

MacBook Pro 16" M5 Max strengths and weaknesses

Strengths

  • Runs 120B MoE models: GPT OSS 120B at 65.5 tok/s in 70.8 GB
  • Room for long context: Qwen3.8 27B at Q4 uses 17.9 GB, leaving 106.6 GB free

Weaknesses

  • Slow on large dense models: Llama 3.3 70B Instruct at 9.2 tok/s
  • Slow prompt reading: A 32K-token prompt on Qwen3.8 27B waits 2.2 min for the first token
  • No CUDA: vLLM, AWQ, GPTQ and FP8 builds don't run; use GGUF or MLX

Memory for models

124.5 GB of 128 GB
35B MoE22 GB70B51.3 GB120B MoE70.8 GB127B82.8 GB
35B MoE22 GB127B82.8 GB
For models 124.5 GBmacOS keeps 3.5 GBModel size at Q4

Everything on the size ladder fits. Two 27B-class models together use 35.7 GB and leave 88.8 GB free.

Speed per dollar and per watt

On Qwen3.6 35B A3B (35B params, 3B active) at Q4_K_M. New means a shop price, either a street quote or the maker's own price; used is compared with used. The last two columns are the speed you get per $1,000 of price and per 100 W of power; higher is better. The MacBook Pro 16" M5 Max has no current new price, so it is shown at its MSRP.

MachineNew pricetok/stok/s per $1,000tok/s per 100 W
about $5,376213
39.7
37.1
about $3,49964.2
18.3
44.3
about $5,59975.9
13.6
25.7
DGX Spark128 GB
about $3,99954.0
13.5
22.5
about $5,39967.8
12.6
–
about $7,09976.6
10.8
28.4
MachineUsed pricetok/stok/s per $1,000tok/s per 100 W
about $3,000151
50.3
33.6
about $6,400213
33.3
37.1

Cost per token: the MacBook Pro 16" M5 Max against 24–256 GB machines and GPUs

On Qwen3.6 35B A3B (35B params, 3B active, Q4_K_M, 4K context). Speed, cost per token and power per token depend on the model.

24–36 GB96–128 GB192+ GBthis laptopat MSRP
Cost per 1M output tokenson Qwen3.6 35B A3B · card over 3 years + power
$5.05
Machine, MSRP
$5.05
Power
not published
3-year cost of ownership$5,399
Or rent an A100 in the cloud$1.12/hr

Renting costs as much as buying after ≈4,800 hours (≈3.3 years at 4 h a day).

Each dot is a machine or GPU; hover or tap it for its numbers, click to open it. Machines without a price for the chosen basis are left out. Machines without a published power figure are left out of Per watt and costed without power. How we calculate cost per token

Similar devices and alternatives

Other memory sizes of the same machine first, then machines and GPUs people weigh against it, each with the one reason it is worth a look. Speeds on Qwen3.6 35B A3B.

MacBook Pro 16" M5 Max tokens per second by model size

Output speed depends on memory bandwidth (614 GB/s). Grey rows need more than the 124.5 GB available.

  1. 9BQwen3.5 9B · Q4_K_M · 6.6 GB
    67.6tok/s
  2. 14BQwen3 14B · Q4_K_M · 11.9 GB
    45.2tok/s
  3. 27–31BQwen3.8 27B · Q4_K_M · 17.9 GB
    24.7tok/s
  4. 35B MoEQwen3.6 35B A3B · Q4_K_M · 22.0 GB
    67.8tok/s
  5. 70BLlama 3.3 70B Instruct · Q4_K_M · 51.3 GB slow
    9.2tok/s
  6. 120B MoEGPT OSS 120B · Q4_K_M · 70.8 GB
    65.5tok/s

Estimated speeds: Q4_K_M, 4K context, one user. How we estimate

Max generations: writing vs compute

M1 Max → M5 Max
Writing speed (tok/s)Compute (TFLOPS FP16)
1×2×3×4×M1 Max2021M2 Max2023M3 Max2023M4 Max2024M5 Max2026M1 Max · 20.8 TFLOPS FP16M1 Max · 54.5 tok/s · 400 GB/sM2 Max · 27.2 TFLOPS FP16M2 Max · 54.5 tok/s · 400 GB/sM3 Max · 28.7 TFLOPS FP16M3 Max · 55.2 tok/s · 409.6 GB/sM4 Max · 34.4 TFLOPS FP16M4 Max · 64.2 tok/s · 546 GB/sM5 Max · 68 TFLOPS FP16M5 Max · 67.8 tok/s · 614 GB/sCompute 3.3×Writing +24%
1×2×3×4×M12021M22023M32023M42024M52026M1 Max · 20.8 TFLOPS FP16M1 Max · 54.5 tok/s · 400 GB/sM2 Max · 27.2 TFLOPS FP16M2 Max · 54.5 tok/s · 400 GB/sM3 Max · 28.7 TFLOPS FP16M3 Max · 55.2 tok/s · 409.6 GB/sM4 Max · 34.4 TFLOPS FP16M4 Max · 64.2 tok/s · 546 GB/sM5 Max · 68 TFLOPS FP16M5 Max · 67.8 tok/s · 614 GB/sCompute 3.3×Writing +24%

Writing speed follows memory bandwidth and barely moved: 54.5 to 67.8 tok/s since the M1 Max. Compute, which sets how fast prompts are read, grew 3.3×. Indexed to the M1 Max; speeds on Qwen3.6 35B A3B, same 64 GB.

All 1290 models on the MacBook Pro 16" M5 Max

Featured only

Best quant that fits in 124.5 GB, ordered by llmrun Score. Fit grades how well it runs here, S best. How ranking works

LLM models compatible with MacBook Pro 16" M5 Max (128 GB) — ranked by Score, recency and Fit
ModelVRAMScoreFit
Hermes 4.3 36B
Q4_K_M·19.3 t/s
24.1 GBB59, Decent
LFM2 24B A2B
Q4_K_M·88.1 t/s
14.9 GBS89, Runs great
Q4_K_M·286.5 t/s
1.7 GBS100, Runs great
Q4_K_M·151.3 t/s
5 GBS97, Runs great
BF16·6.6 t/s
66.6 GBC43, Usable
Q4_K_M·7.7 t/s
55.8 GBB45, Decent
BF16·21490.0 t/s
0.4 GBS100, Runs great
BF16·413.3 t/s
1.2 GBS100, Runs great
Qwen2.5 3B Instruct
Q4_K_M·192.7 t/s
2.8 GBS99, Runs great
GLM 4.5V
Q4_K_M·34.2 t/s
66.0 GBA73, Runs well
Llama 3.2 1B Instruct
Q4_K_M·524.1 t/s
2.3 GBS100, Runs great
Q4_K_M·300.6 t/s
1.8 GBS100, Runs great
Q4_K_M·79.7 t/s
7.3 GBS88, Runs great
BF16·17.5 t/s
27.4 GBB57, Decent
DeepHat V1 7B
Q4_K_M·86.1 t/s
5.8 GBS88, Runs great

MacBook Pro 16" M5 Max specs

Specs

Chip
M5 Max
CPU cores
18
GPU cores
40
Unified memory
128 GB LPDDR5X
For models
124.5 GB (macOS keeps 3.5 GB)
Memory bandwidth
614 GB/s
FP16 (dense)
68 TFLOPS
Neural Engine
38 TOPS
NPU
16-core Neural Engine
Size
MacBook Pro 14/16-inch
Released
2026-03-11
MSRP
$5,399

MacBook Pro 16" M5 Max FAQ

Is the MacBook Pro 16" M5 Max (128 GB) worth it for local LLMs in 2026?

At its $5,399 MSRP it gives 12.6 tok/s per $1,000 on Qwen3.6 35B A3B, 5th of the 6 machines compared here. It runs 27–31B and 120B MoE models well; dense 70B fits but is slow at 9 tok/s.

How much memory is available for AI on the MacBook Pro 16" M5 Max (128 GB)?

About 124.5 GB of the 128 GB. macOS keeps roughly 3.5 GB for itself and other apps.

What is the largest model the MacBook Pro 16" M5 Max (128 GB) can run?

Mistral Medium 3.5 128B (127.7B) is the largest at 4-bit or better: at Q4_K_M it uses 82.8 GB, 67% of the available memory, and runs at about 5.5 tok/s. At 3-bit, a bigger model fits too: Inkling Small (266.0B) at IQ3_S, 116.2 GB.

Can the MacBook Pro 16" M5 Max (128 GB) run Qwen3.8 27B?

Yes. Qwen3.8 27B fits at Q4_K_M, using 17.9 GB of the 124.5 GB available, and it is the best model that runs well on this machine.

Can the MacBook Pro 16" M5 Max (128 GB) run 70B models?

Yes, but slowly: Llama 3.3 70B Instruct at Q4_K_M uses 51.3 GB and writes about 9.2 tok/s.

How long does the MacBook Pro 16" M5 Max (128 GB) take to read a long prompt?

On Qwen3.8 27B, about 17 s for a 4K-token prompt and 2.2 min for a 32K-token document before the first word appears.

Is renting a GPU cheaper than buying the MacBook Pro 16" M5 Max?

An A100 (80 GB) rents from $1.12/hr. Renting costs as much as buying after ≈4,800 hours (≈3.3 years at 4 h a day).