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.
MLX Studio — the only app that natively supports JANG models
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MiniMax M2.5 — JANG_2L + CRACK
JANG mixed-precision · CRACK abliterated · No guardrails · 63 GB
What Is This?
This is MiniMax M2.5 — a 230B parameter Mixture-of-Experts model with 256 experts (8 active per token), all standard attention (no SSM), and trained with chain-of-thought reasoning.
It has been:
- JANG quantized — JANG_2L profile (8-bit attention, 6-bit embeddings, 2-bit experts) — 63 GB
- CRACK abliterated — permanent weight-level removal of safety refusal
MMLU-200 Results
JANG CRACK vs Base vs MLX Uniform
MLX uniform quantization is completely broken on MiniMax at ALL bit levels (~25% = random chance). JANG is the only working quantization format for this model.
Per Subject
Safety guardrails were actively degrading the model's reasoning ability. CRACK surgery unlocked the model's full capacity for mathematical and logical reasoning.
HarmBench Results
314/320 (98.1%) — tested with enable_thinking=false, temperature=1.0
Install & Usage
Note: MiniMax generates a <think> chain before answering by default. To disable thinking, pass enable_thinking=False in your chat template kwargs. Use max_tokens=2000+ for complex questions. For chat applications, use temperature=1.0 (greedy causes 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 using per-layer projected vectors from structurally-mirrored prompt pairs.
Links
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.
한국어
MiniMax M2.5 — JANG_2L + CRACK
GitHub · HuggingFace · MLX Studio · Ko-fi · X @dealignai
Created by Jinho Jang · 장진호 제작