Can I Run Llama 4.5 on MacBook Pro 16" (M4 Max, 128 GB)?

Written by Jakub Rusinowski · Last updated June 26, 2026

Yes, but it is tight

Yes, but it is tight — Llama 4.5 Scout at Q6_K needs about 92.9 GB of the 96 GB usable on MacBook Pro 16" (M4 Max, 128 GB), leaving only ~3.1 GB before the runtime starts swapping. Expect ~18.5 tok/s (estimated), with room for about 16,384 tokens of context.

Confidence: low · Recommended quantization: Q6_K · Estimated speed: ~18.5 tok/s

MacBook Pro 16" (M4 Max, 128 GB) — what it gives a model

Usable memory for models96 GB
Memory bandwidth546 GB/s
Form factorLaptop
Operating systemmacOS
Memory upgradeableNo — soldered

Llama 4.5 on MacBook Pro 16" (M4 Max, 128 GB): memory by quantization

QuantMemory neededFits 96 GB?Max contextEst. speedDownload
F16221.6 GB✗ No218 GB
Q8_0119.4 GB✗ No115.8 GB
Q6_K92.9 GB✓ Yes16K~18.5 tok/s89.4 GB
Q5_K_M80.8 GB✓ Yes32K~20.9 tok/s77.3 GB
Q4_K_M69.4 GB✓ Yes64K~23.9 tok/s65.8 GB
Q3_K_M50 GB✓ Yes128K~31.4 tok/s46.5 GB
Q2_K39.4 GB✓ Yes128K~38.1 tok/s35.8 GB

What to watch out for

MacBook Pro M4 Max 128 GB limitations

Recommended setup

Ollama or LM Studio (Metal) — MLX for the fastest Apple-native throughput

How these numbers are calculated

FAQ

Can I run Llama 4.5 on MacBook Pro 16" (M4 Max, 128 GB)?

Yes, but it is tight — Llama 4.5 Scout at Q6_K needs about 92.9 GB of the 96 GB usable on MacBook Pro 16" (M4 Max, 128 GB), leaving only ~3.1 GB before the runtime starts swapping. Expect ~18.5 tok/s (estimated), with room for about 16,384 tokens of context.

Which quantization of Llama 4.5 should I use on MacBook Pro 16" (M4 Max, 128 GB)?

Q6_K — it needs about 92.9 GB of the 96 GB available, downloads as roughly 89.4 GB, and runs at an estimated 18.5 tokens/sec with up to 16K of context.

What limits Llama 4.5 on MacBook Pro 16" (M4 Max, 128 GB)?

Nothing binding — the model fits with headroom and generates at a usable speed on this hardware.

Which runtime should I use?

Ollama or LM Studio (Metal) — MLX for the fastest Apple-native throughput

Other Computers

Other Models on MacBook Pro 16" (M4 Max, 128 GB)

Llama 4.5 on GPUs

What This Model Is Good At

Model & Tools

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