Laguna-XS-2.1-4bit

mlx-community/Laguna-XS-2.1-4bit

Laguna-XS-2.1-4bit is a text generation model from mlx-community. Use it when you need the model to write or continue text. It is set up for mlx. The card lists the license as openmdw-1.1.

Converted from poolside/Laguna-XS-2.1 to MLX format, quantized to 4 bits (group size 64, 4.503 bpw effective).

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1.3K

18% of all-time downloads

All-time downloads

7.3K

Public

Parameters

33.4B

18.8 GB on disk

Likes

Public

Hugging Face

Repo makeup

Click a slice to open those files.

.safetensors18.8 GB · 100%

Parameter types

How the weights are stored.

U3233.4B · 100%

Try a prompt

Base models

poolside/Laguna-XS-2.1

Model card

From the Hugging Face model README

Laguna-XS-2.1 (MLX, 4bit)

Converted from poolside/Laguna-XS-2.1 to MLX format, quantized to 4 bits (group size 64, 4.503 bpw effective).

Notes

Works with mlx-vlm and oMLX (forcing the model's vlm mode). mlx-lm doesn't support the laguna architecture yet — there's an open PR: mlx-lm#1223.
Sometimes I got an empty </think> tag at the start of responses, which isn't that common. It won't affect anything tho.

Performance

Measured with oMLX's benchmark harness on a Macbook Pro M5 Max 128GB 40 GPU (single request, 128 generated tokens):

prompt	gen tok/s	prefill tok/s	TTFT ms	peak GB
1k	126.0	2797	367	18.2
4k	121.2	4052	1011	18.8
8k	116.6	3785	2165	18.9
16k	109.1	3122	5248	19.2
32k	91.3	2462	13312	19.8

Variants

Variant	bpw	Disk	gen tok/s (1k → 32k)
bf16	16	62 GB	70.6 → 58.7
8bit	8.500	33 GB	95.4 → 76.7
6bit	6.501	25 GB	102.9 → 80.9
5bit	5.502	21 GB	115.9 → 87.7
4bit (this repo)	4.503	18 GB	126.0 → 91.3
3bit	3.503	14 GB	137.2 → 98.8

Usage

uvx --from mlx-vlm mlx_vlm.generate --model mlx-community/Laguna-XS-2.1-4bit --prompt "..." --max-tokens 300

License

OpenMDW-1.1, inherited from the base model.

Task: Text Generation
Library: mlx
Type: laguna
License: openmdw-1.1
Created: Jul 3, 2026
Updated: Jul 3, 2026