Important: This model uses the JANG quantization format -- the GGUF equivalent for MLX on Apple Silicon. Currently only supported by MLX Studio and the jang-tools Python package. Follow @dealignai for new releases.

MLX Studio -- the only app that natively supports JANG models

MiniMax M2.7 -- JANG_3L + CRACK

JANG mixed-precision | CRACK abliterated | Reasoning-only | 89 GB

Ko-fi

What Is This?

This is MiniMax M2.7 -- a 230B parameter Mixture-of-Experts reasoning model with 256 experts (8 active per token), all standard attention, and always-on chain-of-thought reasoning.

It has been:

JANG quantized -- JANG_3L profile (8-bit attention, 4-bit embeddings, 3-bit experts) -- 89 GB
CRACK abliterated -- permanent weight-level removal of safety refusal


Architecture	MiniMax M2.7 MoE -- 230B total, ~10B active, 256 experts
Quantization	JANG_3L (8/4/3-bit mixed) -- 89 GB
Abliteration	CRACK abliterated
MMLU-200	93.5% (base: 95.5%, delta: -2.0%)
HarmBench-320	79.1% overall, 89.4% excluding copyright
Reasoning	Always ON (chain-of-thought)
Speed	~46 tok/s (M4 Ultra 256 GB)
Fits on	128 GB+ Macs

MMLU-200 Results

Subject	CRACK	Base	Delta
High School Biology	20/20 (100%)	20/20	0
Abstract Algebra	19/20 (95%)	19/20	0
Anatomy	19/20 (95%)	18/20	+1
College Computer Science	19/20 (95%)	19/20	0
College Physics	19/20 (95%)	20/20	-1
High School Chemistry	19/20 (95%)	19/20	0
High School Mathematics	19/20 (95%)	20/20	-1
World Religions	19/20 (95%)	18/20	+1
Astronomy	18/20 (90%)	19/20	-1
Logical Fallacies	16/20 (80%)	19/20	-3
Total	187/200 (93.5%)	191/200 (95.5%)	-2.0%

HarmBench-320 Results

Category	Score
Cybercrime / Intrusion	52/52	100%
Misinformation / Disinfo	52/54	96.3%
Chemical / Biological	37/42	88.1%
Harmful	15/18	83.3%
Illegal	40/53	75.5%
Harassment / Bullying	14/21	66.7%
Copyright	43/80	53.8%

Note on copyright: M2.7's base model has strong copyright training and refuses to reproduce copyrighted books/lyrics regardless of abliteration. This is a base model limitation, not a surgery result.

JANG CRACK M2.7 Series

Model	Avg Bits	Size	MMLU	HarmBench	Speed	Fits on
JANG_2L + CRACK	2.1	63 GB	84.0%	83.4%	~47 t/s	96 GB Mac
JANG_3L + CRACK	3.08	89 GB	93.5%	79.1%	~46 t/s	128 GB Mac

vs MLX Uniform Quantization

MLX uniform quantization is completely broken on MiniMax at ALL bit levels (~25% MMLU = random chance). JANG is the only working quantization format for this architecture.

Install & Usage

pip install "jang[mlx]"

python

from jang_tools import load_for_inference
from mlx_lm import generate
from mlx_lm.sample_utils import make_sampler

model, tokenizer = load_for_inference("dealignai/MiniMax-M2.7-JANG_3L-CRACK")
sampler = make_sampler(temp=1.0)  # MiniMax requires temp=1.0 for chat

messages = [{"role": "user", "content": "Your prompt here"}]
prompt = tokenizer.apply_chat_template(
    messages, add_generation_prompt=True, tokenize=False)

response = generate(model, tokenizer, prompt=prompt, max_tokens=4000, sampler=sampler)
print(response)

Note: M2.7 is a reasoning-only model -- it always generates a <think> chain before answering. Use max_tokens=4000+ for complex questions. For chat, use temperature=1.0 (greedy causes infinite loops).

About JANG

JANG (Jang Adaptive N-bit Grading) is a mixed-precision quantization format for Apple Silicon -- the GGUF equivalent for MLX. Classifies tensors into sensitivity tiers and assigns bits accordingly.

About CRACK

CRACK (Controlled Refusal Ablation via Calibrated Knockouts) removes safety alignment from LLMs at the weight level, achieving compliance while preserving reasoning quality.

Links

Ko-fi

X/Twitter

GitHub

Disclaimer

This model is provided for research and educational purposes. The creators are not responsible for any misuse. By downloading this model, you agree to use it responsibly and in compliance with applicable laws.

Created by Jinho Jang