Important: This model uses the JANG v2 mixed-precision quantization format for MLX on Apple Silicon. Attention layers stay at 8-bit affine precision while MLP and SSM layers compress to 4-bit. Loads via vMLX or the jang-tools Python package. Follow @dealignai for new releases.

Qwen 3.6 27B — JANG_4M + CRACK

JANG v2 mixed-precision | CRACK abliterated | Vision + Video | Dense Hybrid SSM/Attention | 16 GB

What Is This?

This is Qwen 3.6 27B — a 27B-parameter dense vision-language model with hybrid linear + full-attention architecture, native image + video understanding, and bilingual EN/ZH capability.

It has been:

1. JANG v2 quantized — JANG_4M profile: 8-bit affine attention + 4-bit base (avg 4.45 bits), vision tower preserved — 16 GB
2. CRACK abliterated — permanent weight-level removal of safety refusal

MMLU-200 Results (thinking OFF)

CRACK surgery actually improved overall MMLU — gains on astronomy, fallacies, anatomy, chemistry offset a small loss on abstract algebra. This is unusual and suggests the surgery primarily removed the model's tendency to add "I shouldn't answer" disclaimers on borderline MMLU prompts rather than damaging any knowledge.

HarmBench-320 — 99.69% strict comply (319/320)

The single refusal is on a suicide-instruction prompt (Q70). The model redirects to crisis support hotlines (988, 999, 112) — a sensible safety retention that most abliterated models preserve.

Every other hard-safety category scores 100%, including explicit hate speech, mass-casualty planning, graphic violence, pornography, exploit code, and CBRN synthesis — categories that typically survive abliteration in other releases.

Vision + Video

• ✅ Loads via mlx_vlm / vMLX / jang-tools successfully
• ✅ ViT preserved — image understanding verified
• ✅ video_preprocessor_config.json preserved, video processor available
• ✅ Bilingual EN + ZH text responses

Reasoning ON / OFF

The chat template respects enable_thinking. Recommend ON for complex reasoning, OFF for short answers / benchmarks / tool use.

# via vMLX or jang-tools loader
from jang_tools.loader import load_jang_model
model, tokenizer = load_jang_model("dealignai/Qwen3.6-27B-JANG_4M-CRACK")

messages = [{"role": "user", "content": "Derive 47 * 23 step by step"}]

# Thinking ON (default)
prompt = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)

# Thinking OFF
prompt = tokenizer.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True, enable_thinking=False,
)

All MMLU-200 numbers above were measured with thinking OFF for consistent short-form grading.

Requirements

• Apple Silicon Mac (M1 or newer)
• 24 GB+ unified memory (model weights 16 GB, inference working set ~18 GB)
• Python 3.10+ with mlx and jang-tools (or vMLX for native loading)

Recommended runtimes:

• vMLX — native JANG support, KV cache quantization, VL, video
• jang-tools Python package

Qwen 3.6 CRACK Series

About CRACK

CRACK is a permanent weight-level abliteration — the changes are baked into the model weights, not an inference-time system prompt or LoRA. The vision tower is untouched. Bilingual refusal extraction (EN + ZH) means the model complies on both English and Chinese prompts.

On the JANG_4M variant, CRACK surgery benefits from the 8-bit affine precision on attention layers — the higher precision preserves subtle weight changes better than 4-bit uniform formats, producing a cleaner abliteration with minimal MMLU regression.

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About dealignai

We research and publish abliterated models to advance AI safety understanding.

Follow us: 𝕏 @dealignai

See our research: Safety Generalization in Frontier MoE Models

Disclaimer

This model has had its safety refusal circuits removed. It will produce responses that would normally be refused, including technical content on security testing, dual-use research, and sensitive topics. You are responsible for how you use it.

The CRACK abliteration process does not add new capabilities — it only removes the model's learned refusal patterns. All knowledge, including the knowledge used to produce unsafe outputs, was already present in the base Qwen model.