Qwen-Image-2.1-PE-I2I Heretic (abliterated)
Not affiliated with or endorsed by Alibaba / Qwen. A community derivative of
Qwen/Qwen-Image-2.1-PE-I2I, redistributed under the Qwen Research License (copy included asLICENSE). Non-commercial use only; commercial use needs a separate licence from Qwen.
The image-editing prompt rewriter for Qwen-Image-2.1, a fine-tuned Qwen3.5-VL 9B that turns a short edit instruction plus 1–N input images into a detailed English edit prompt, with its refusal behaviour removed by Heretic directional ablation. bf16, same shapes and parameter count as the source; nothing else was changed.
system_prompt.txt is included and required. It defines the output format. It is the unmodified file from the
source repo.
Results
| Refusals | KL divergence | |
|---|---|---|
| Original | 100/100 | 0 (by definition) |
| This model (trial 998) | 9/100 | 0.0368 |
| Same, re-measured after export | 9/100 | 0.0363 |
The second row is an independent evaluation of the exported weights with Heretic's evaluate_model. Refusals were
measured on mlabonne/harmful_behaviors and KL divergence (damage to ordinary behaviour, first-token
distributions) on mlabonne/harmless_alpaca, both Heretic's defaults, with Heretic's default system prompt.
With n = 100 the refusal count is noisy (σ ≈ 3 at this rate), so 6 vs 9 vs 11 are not meaningfully different. Trial 998 was chosen from the Pareto front for having the damage level of the widely used T2I Heretic (pottokao/Qwen-Image-2.1-PE-T2I-Heretic, KL 0.036):
| Refusals | KL | |
|---|---|---|
| 6/100 | 0.0431 | trial 691 |
| 9/100 | 0.0368 | trial 998 (this model) |
| 11/100 | 0.0330 | trial 960 |
| 16/100 | 0.0307 | trial 957 |
| 20/100 | 0.0265 | trial 975 |
| 31/100 | 0.0194 | trial 682 |
Does it still rewrite edits?
Checked through a real editing app's prompt-enhancer path (the official pe_core output contract, enable_thinking,
Qwen's sampling settings) on three edit instructions: a plain one ("make the sky a dramatic sunset") and two
borderline ones (horror-film fake blood; a prop handgun on a table). Every answer parsed, and the rewrites were as
detailed and specific as the original's.
An honest caveat: the original model did not refuse those image edits either. Like the T2I rewriter, it is relaxed about edgy image subjects and near-total in refusing chat-style harmful instructions, which is what the 100/100 baseline measures. The ablation mainly changes the latter.
NVFP4 build for vLLM on Blackwell: darrellbest/Qwen-Image-2.1-PE-I2I-Heretic-NVFP4. Companion for text-to-image: darrellbest/Qwen-Image-2.1-PE-T2I-Heretic.
Reproduce
- Heretic
3521f86(main, 2026-09-21), default config exceptn_trials = 1000(200, then 800 more on the same study) andexport_strategy = "merge". transformers 5.17.0, torch 2.11.0+cu130, one RTX PRO 6000 Blackwell. - Trial 998 parameters:
direction_scope = global,direction_index = 19.522,attn.o_proj: max_weight 0.977 at 19.045, min_weight 0.935, min_weight_distance 18.014,mlp.down_proj: max_weight 1.456 at 22.104, min_weight 0.831, min_weight_distance 18.551.
Use
Exactly like the original: load with AutoModelForImageTextToText / AutoProcessor and use system_prompt.txt as
the system prompt.
The family
| Model | Format | Use it with |
|---|---|---|
| PE-T2I-Heretic | bf16 safetensors | transformers / diffusers |
| PE-T2I-Heretic-GGUF | GGUF BF16 / Q8_0 / Q4_K_M | llama.cpp, Ollama |
| PE-T2I-Heretic-NVFP4 | NVFP4 (compressed-tensors) | vLLM on Blackwell |
| PE-I2I-Heretic | bf16 safetensors | transformers / diffusers |
| PE-I2I-Heretic-GGUF | GGUF BF16 / Q8_0 / Q4_K_M (+ mmproj) | llama.cpp, Ollama |
| PE-I2I-Heretic-NVFP4 | NVFP4 (compressed-tensors) | vLLM on Blackwell |
T2I rewrites a short request into a detailed prompt for new images; I2I rewrites an edit instruction, reading the image being edited. Both are prompt rewriters for Qwen-Image-2.1, not image generators.