heretic-org · First MLX build 17 Feb 2026

Nanbeige4.1-3B-heretic

MLX Text apache-2.0

A 3.9B parameter text generation model from heretic-org, with 2 MLX builds at MXFP4.

Hugging Face
Parameters
3.9B
From Hugging Face
Quantisation
MXFP4
Nanbeige4.1-3B-heretic-mxfp4
Memory needed
11 GB
Estimate, unified memory
Download
7.9 GB
Weights, estimated
Downloads
35
This build, last 30 days
Task
Text generation
Text
MLX builds
2
On mlx-community
Devices
Mac
Apple silicon

Memory

Estimated from the size of the weights, plus a fifth for context and working memory and 2 GB for macOS and your apps. Long contexts need more.

Run it

Terminal · mlx-lm
$ pip install -U mlx-lm
$ mlx_lm.generate --model mlx-community/Nanbeige4.1-3B-heretic-mxfp4 --prompt "Hello"

MLX builds

2 on mlx-community
Click a column to sort. Smallest size and most downloads are highlighted.
Nanbeige4.1-3B-heretic-mxfp4 MXFP4 7.9 GB 11 GB 35
Nanbeige4.1-3B-heretic-bfloat16 Unstated 7.9 GB 11 GB 29

Sizes are estimated from Hugging Face’s parameter counts and the quantisation. Downloads are for the last 30 days.