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Qwen3.5-27B-OptiQ-4bit

mlx-community/Qwen3.5-27B-OptiQ-4bit
4-bit Open on Hugging Face
Parameters
27B
Weights (est.)
≈ 16.1 GB
Mac memory (est.)
24 GB+

Size is estimated from the parameter count and quantisation. Memory allows a fifth extra for context plus 2 GB for the system; long contexts need more.

Run it

With mlx-lm on an Apple silicon Mac:

pip install mlx-lmmlx_lm.generate --model mlx-community/Qwen3.5-27B-OptiQ-4bit --prompt "Hello"

Details

Base model
Qwen/Qwen3.5-27B (quantized)
Vendor
Qwen
Task
Text generation
Quantisation
4-bit
Licence
apache-2.0
Downloads
449 in the last 30 days · 52K all time · 3 likes
Published
2026-04-25 · updated 2026-10-30 (12d ago)
Tags
qwen3_5, quantized, mixed-precision, 4bit, 8bit, optiq, apple-silicon, qwen3.5

Other MLX builds of Qwen/Qwen3.5-27B

Build Quantisation Weights Mac memory Downloads
XORTRON.CriminalComputing.2026.27B.Instruct.NEXT-4.5bit-msq 5-bit ≈ 4.5 GB 8 GB+ 18
Qwen3.5-27B-OptiQ-4bit (this one) 4-bit ≈ 16.1 GB 24 GB+ 449
Qwen3.5-27B-mxfp8 MXFP8 ≈ 29.5 GB 48 GB+ 772