LiconStudio/Qwen3.5-9B-abliterated

Model Description

This is an uncensored version of Qwen3.5-9B, processed using the Heretic method to remove the model's built-in refusal/censorship mechanisms through neural direction ablation.

Residual Visualization

PaCMAP projections showing the mixing of harmless (blue) and harmful (red) prompts:

Layer 12	Layer 17

Layer 22	Layer 28

These plots show successful removal of refusal behavior - harmless and harmful prompts are well-mixed across layers.

Core Metrics

Metric	Original Model	This Model	Description
Refusal Rate	92.0%	4.0%	Tested on 100 harmful prompts
KL Divergence	-	0.0583	Per-token average
Model Size	9B	9B	Architecture unchanged

KL Divergence Rating

KL divergence measures the degree of model modification:

KL Range	Rating	Description
< 0.05	⭐⭐⭐⭐⭐	Extremely Low - Model virtually unchanged
0.05 - 0.10	⭐⭐⭐⭐	Low - Minor modification, capabilities well preserved
0.10 - 0.20	⭐⭐⭐	Moderate - Acceptable modification range
0.20 - 0.50	⭐⭐	High - Possible noticeable capability loss
> 0.50	⭐	Too High - Model may be severely compromised

**This model: KL : 0.0583, Refusal Rate : 4/100, NLL:3.37%

Heretic Approach

This model uses the Heretic method for neural direction ablation:

1. Identify Refusal Direction - Compute residual vectors from harmful vs. harmless prompts
2. Direction Extraction - Extract the "refusal vector" from the difference of means
3. Ablative Removal - Apply LoRA-based modification to subtract this direction from model weights

This method only modifies model weights without changing the architecture or adding inference overhead.

For detailed technical principles, refer to: Heretic GitHub

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Intended Use Cases

✅ Recommended Uses

• Uncensored content creation
• Research and analysis of sensitive topics
• Safety testing and red-teaming exercises
• Academic research on model alignment

❌ Not Recommended For

• Production environments requiring content moderation
• Applications targeting minors
• Scenarios with potential legal risks

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Limitations

1. No Safety Filtering - The model will directly answer all questions, including harmful or dangerous content
2. User Discretion Required - Users must independently judge the appropriateness of generated outputs
3. Minor Capability Loss - Some performance degradation on complex tasks may occur

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Disclaimer

⚠️ Important: This model is intended for research and educational purposes only.

• This model has had its censorship mechanisms removed and may generate harmful, dangerous, or inappropriate content
• Users assume all risks associated with usage
• Do not use this model for illegal activities, harming others, or any inappropriate purposes
• The model authors are not liable for any indirect, incidental, or consequential damages

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Acknowledgments

• Original Model: Qwen/Qwen3.5-9B
• Heretic Method: p-e-w/heretic