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:
- Identify Refusal Direction - Compute residual vectors from harmful vs. harmless prompts
- Direction Extraction - Extract the "refusal vector" from the difference of means
- 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
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
Limitations
- No Safety Filtering - The model will directly answer all questions, including harmful or dangerous content
- User Discretion Required - Users must independently judge the appropriateness of generated outputs
- Minor Capability Loss - Some performance degradation on complex tasks may occur
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
Acknowledgments
- Original Model: Qwen/Qwen3.5-9B
- Heretic Method: p-e-w/heretic