Yes — with 31.3 GB to spare

Qwen3.6 27B at Q4_K_M fits your M4 Pro · 64 GB entirely in unified memory at 8K context, at an estimated 9.8 tokens per second. There is room for its full 256K window.

Fully in unified memory 8K context Q4_K_M · 15.6 GB Apache 2.0 Released 22 Apr 2026 Vision

The 24 GB coding pick of spring 2026 (77.2 SWE-bench Verified). Same shape as 3.8, one generation behind.

What hardware do I need for Qwen3.6 27B? →

The VRAM budget

weights 15.6 GB
Weights 15.6 GB KV cache @ 8K 0.50 GB Runtime overhead 0.6 GB Free 31.3 GB of 48.0 GB

Quantisation ladder

QuantWeightsTotal @ 8KMax contextTok/sQualityFit
Q8_0 27.5 GB 28.6 GB 256K 5.5 −0.1% ppl Long context
Q6_K 21.2 GB 22.3 GB 256K 7.2 −0.4% ppl Long context
Q5_K_M 18.4 GB 19.5 GB 256K 8.3 −0.8% ppl Long context
Q4_K_M 15.6 GB 16.7 GB 256K 9.8 −1.9% ppl Recommended
Q3_K_M 12.7 GB 13.8 GB 256K 12 −5.4% ppl Long context
Q2_K 10.8 GB 11.9 GB 256K 14 −15% ppl Long context

Quality is the published perplexity delta against f16 weights. Max context assumes an f16 KV cache; q8_0 roughly doubles it. Only 16 of its 64 blocks keep a per-token KV cache; the rest are linear-attention, Mamba or convolution blocks with a fixed-size state.

How to run it

terminal
$ pip install mlx-lm
$ mlx_lm.generate --model mlx-community/Qwen3.6-27B-4bit \
    --max-tokens 512 --prompt "Hello"

Apple's own array framework. The fastest path on Apple Silicon. More on MLX.

01Download is 15.6 GB. Keep it on an SSD — a first load off a spinning disk takes minutes.
02macOS caps what the GPU may wire down at about 48.0 GB of 64 GB. Raising it with iogpu.wired_limit_mb is possible, and risky.
03There is room to go to the model's full 256K context on this card.
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