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llmfan46/Qwen3.5-27B-Writer-V2-uncensored-heretic

llmfan46 Qwen 27B
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Abliteration classifier · v1.0.0
M3
Primary method

Layer-wise ablation

Applied on top of direct removal inherited from the base model.
Confidence
HIGH
Inherited from base model
Why this label 2 signals
Producer identity confirmed by naming conventions, tags or the model card. This label is very unlikely to change.
  • 'heretic' in model name (Heretic-produced)
  • Heretic uses layer-wise optimization (M3) with underlying direction removal (M1)
Refusal direction extracted via
Extraction technique

Difference-of-means

Confidence
HIGH
Why we say so
name contains 'heretic'; Heretic default extraction is difference-of-means (Arditi 2024)
Downloads · lifetime
1K
55 last 30d - cooling
Likes
2
Descendants
5
in 5 direct forks
Model age
5mo ago
created 2026-04-16

Training datasets

Corpora the author lists in the model card. Datasets tracked in our /datasets catalog carry a category badge linking to the workflow stage. Others open on Hugging Face.

Downloads over time
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214478731.3K77 on Apr 151.2K on Oct 11AprMayJunJulAugSepOct
Apr 15 → Oct 11 · 65 snapshots · spans 179 days

Genealogy 5 direct forks

Full fork graph →

This model's place in the market. Above: what it was derived from. Below: the tree of everything derived from it.

Variants by this author 2 formats · 3K downloads combined

The same weights this author released in different packaging. Pick the format that matches your runtime.

Metadata

License
apache-2.0
Tags
safetensors qwen3_5 heretic uncensored decensored abliterated ara dataset:ConicCat/Gutenberg-SFT dataset:ConicCat/AntiRep dataset:ConicCat/Condor-SFT-Filtered dataset:ConicCat/MiniC2_V3.2 base_model:ConicCat/Qwen3.5-27B-Writer-V2

Related

Total size
51.0 GB
Files
11
Quantizations
1
Registered
2026-08-22 13:56
Last updated on HF
2026-04-16 10:29

Files by quantization

Auxiliary files 11 files 51.0 GB
model-00001-of-00002.safetensors 46.4 GB 18170542 download
model-00002-of-00002.safetensors 4.55 GB ec5a389a download
tokenizer.json 19.1 MB 639e352c download
model.safetensors.index.json 110 KB 4fac7fd7 download
README.md 18.8 KB 8a838623 download
chat_template.jinja 7.83 KB 1e6f3b77 download
config.json 3.69 KB 3b37fcb3 download
.gitattributes 1.53 KB 52373fe2 download
processor_config.json 1.27 KB 7ad6acdf download
tokenizer_config.json 1.14 KB 81144f40 download
generation_config.json 226 B 7c8bef13 download

README current version from Hugging Face


license: apache-2.0
datasets:

  • ConicCat/Gutenberg-SFT
  • ConicCat/AntiRep
  • ConicCat/Condor-SFT-Filtered
  • ConicCat/MiniC2_V3.2
    base_model:
  • ConicCat/Qwen3.5-27B-Writer-V2
    tags:
  • heretic
  • uncensored
  • decensored
  • abliterated
  • ara

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91% fewer refusals (8/100 Uncensored vs 93/100 Original) while preserving model quality (0.0274 KL divergence).

❤️ Support My Work

Creating these models takes significant time, work and compute. If you find them useful consider supporting me:

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This model is great for creative writing and translation, the original base model writing and translations feels a litle stiff which might not really read very nicely some times, Qwen3.5-27B-Writer-V2-uncensored-heretic aims to fix this issue and improve the writing quality of Qwen3.5-27B.

This is a decensored version of ConicCat/Qwen3.5-27B-Writer-V2, made using Heretic v1.2.0 with the Arbitrary-Rank Ablation (ARA) method

Abliteration parameters

Parameter Value
start_layer_index 31
end_layer_index 56
preserve_good_behavior_weight 0.4059
steer_bad_behavior_weight 0.0001
overcorrect_relative_weight 1.1869
neighbor_count 10

Targeted components

  • attn.o_proj
  • attn.out_proj

Performance

Metric This model Original model (ConicCat/Qwen3.5-27B-Writer-V2)
KL divergence 0.0274 0 (by definition)
Refusals ✅ 8/100 ❌ 93/100

Lower refusals indicate fewer content restrictions, while lower KL divergence indicates more closeness to the original model's baseline. Higher refusals cause more rejections, objections, pushbacks, lecturing, censorship, softening and deflections.

MMLU test results:

Original:

Tasks Version Filter n-shot Metric Value Stderr
mmlu 2 none acc ↑ 0.8562 ± 0.0028
- humanities 2 none acc ↑ 0.8047 ± 0.0056
- formal_logic 1 none 0 acc ↑ 0.7302 ± 0.0397
- high_school_european_history 1 none 0 acc ↑ 0.9030 ± 0.0231
- high_school_us_history 1 none 0 acc ↑ 0.9412 ± 0.0165
- high_school_world_history 1 none 0 acc ↑ 0.9409 ± 0.0153
- international_law 1 none 0 acc ↑ 0.9256 ± 0.0240
- jurisprudence 1 none 0 acc ↑ 0.9074 ± 0.0280
- logical_fallacies 1 none 0 acc ↑ 0.9202 ± 0.0213
- moral_disputes 1 none 0 acc ↑ 0.8584 ± 0.0188
- moral_scenarios 1 none 0 acc ↑ 0.7352 ± 0.0148
- philosophy 1 none 0 acc ↑ 0.8842 ± 0.0182
- prehistory 1 none 0 acc ↑ 0.9167 ± 0.0154
- professional_law 1 none 0 acc ↑ 0.7080 ± 0.0116
- world_religions 1 none 0 acc ↑ 0.9181 ± 0.0210
- other 2 none acc ↑ 0.8735 ± 0.0057
- business_ethics 1 none 0 acc ↑ 0.8300 ± 0.0378
- clinical_knowledge 1 none 0 acc ↑ 0.8868 ± 0.0195
- college_medicine 1 none 0 acc ↑ 0.8382 ± 0.0281
- global_facts 1 none 0 acc ↑ 0.6200 ± 0.0488
- human_aging 1 none 0 acc ↑ 0.8430 ± 0.0244
- management 1 none 0 acc ↑ 0.8738 ± 0.0329
- marketing 1 none 0 acc ↑ 0.9530 ± 0.0139
- medical_genetics 1 none 0 acc ↑ 0.9700 ± 0.0171
- miscellaneous 1 none 0 acc ↑ 0.9387 ± 0.0086
- nutrition 1 none 0 acc ↑ 0.9020 ± 0.0170
- professional_accounting 1 none 0 acc ↑ 0.8014 ± 0.0238
- professional_medicine 1 none 0 acc ↑ 0.9522 ± 0.0130
- virology 1 none 0 acc ↑ 0.5723 ± 0.0385
- social sciences 2 none acc ↑ 0.9162 ± 0.0049
- econometrics 1 none 0 acc ↑ 0.8158 ± 0.0365
- high_school_geography 1 none 0 acc ↑ 0.9596 ± 0.0140
- high_school_government_and_politics 1 none 0 acc ↑ 0.9896 ± 0.0073
- high_school_macroeconomics 1 none 0 acc ↑ 0.9282 ± 0.0131
- high_school_microeconomics 1 none 0 acc ↑ 0.9664 ± 0.0117
- high_school_psychology 1 none 0 acc ↑ 0.9541 ± 0.0090
- human_sexuality 1 none 0 acc ↑ 0.9160 ± 0.0243
- professional_psychology 1 none 0 acc ↑ 0.8725 ± 0.0135
- public_relations 1 none 0 acc ↑ 0.7636 ± 0.0407
- security_studies 1 none 0 acc ↑ 0.8449 ± 0.0232
- sociology 1 none 0 acc ↑ 0.9652 ± 0.0130
- us_foreign_policy 1 none 0 acc ↑ 0.9400 ± 0.0239
- stem 2 none acc ↑ 0.8576 ± 0.0060
- abstract_algebra 1 none 0 acc ↑ 0.8000 ± 0.0402
- anatomy 1 none 0 acc ↑ 0.8296 ± 0.0325
- astronomy 1 none 0 acc ↑ 0.9671 ± 0.0145
- college_biology 1 none 0 acc ↑ 0.9792 ± 0.0119
- college_chemistry 1 none 0 acc ↑ 0.6800 ± 0.0469
- college_computer_science 1 none 0 acc ↑ 0.8300 ± 0.0378
- college_mathematics 1 none 0 acc ↑ 0.6800 ± 0.0469
- college_physics 1 none 0 acc ↑ 0.8235 ± 0.0379
- computer_security 1 none 0 acc ↑ 0.8700 ± 0.0338
- conceptual_physics 1 none 0 acc ↑ 0.9404 ± 0.0155
- electrical_engineering 1 none 0 acc ↑ 0.8276 ± 0.0315
- elementary_mathematics 1 none 0 acc ↑ 0.9101 ± 0.0147
- high_school_biology 1 none 0 acc ↑ 0.9516 ± 0.0122
- high_school_chemistry 1 none 0 acc ↑ 0.8522 ± 0.0250
- high_school_computer_science 1 none 0 acc ↑ 0.9300 ± 0.0256
- high_school_mathematics 1 none 0 acc ↑ 0.6741 ± 0.0286
- high_school_physics 1 none 0 acc ↑ 0.8609 ± 0.0283
- high_school_statistics 1 none 0 acc ↑ 0.8704 ± 0.0229
- machine_learning 1 none 0 acc ↑ 0.7857 ± 0.0389
Groups Version Filter n-shot Metric Value Stderr
mmlu 2 none acc ↑ 0.8562 ± 0.0028
- humanities 2 none acc ↑ 0.8047 ± 0.0056
- other 2 none acc ↑ 0.8735 ± 0.0057
- social sciences 2 none acc ↑ 0.9162 ± 0.0049
- stem 2 none acc ↑ 0.8576 ± 0.0060

Heretic:

Tasks Version Filter n-shot Metric Value Stderr
mmlu 2 none acc ↑ 0.8469 ± 0.0029
- humanities 2 none acc ↑ 0.7858 ± 0.0058
- formal_logic 1 none 0 acc ↑ 0.7302 ± 0.0397
- high_school_european_history 1 none 0 acc ↑ 0.8970 ± 0.0237
- high_school_us_history 1 none 0 acc ↑ 0.9412 ± 0.0165
- high_school_world_history 1 none 0 acc ↑ 0.9367 ± 0.0158
- international_law 1 none 0 acc ↑ 0.9256 ± 0.0240
- jurisprudence 1 none 0 acc ↑ 0.9167 ± 0.0267
- logical_fallacies 1 none 0 acc ↑ 0.8957 ± 0.0240
- moral_disputes 1 none 0 acc ↑ 0.8526 ± 0.0191
- moral_scenarios 1 none 0 acc ↑ 0.6458 ± 0.0160
- philosophy 1 none 0 acc ↑ 0.8810 ± 0.0184
- prehistory 1 none 0 acc ↑ 0.9043 ± 0.0164
- professional_law 1 none 0 acc ↑ 0.7086 ± 0.0116
- world_religions 1 none 0 acc ↑ 0.9298 ± 0.0196
- other 2 none acc ↑ 0.8725 ± 0.0057
- business_ethics 1 none 0 acc ↑ 0.8200 ± 0.0386
- clinical_knowledge 1 none 0 acc ↑ 0.9057 ± 0.0180
- college_medicine 1 none 0 acc ↑ 0.8613 ± 0.0264
- global_facts 1 none 0 acc ↑ 0.5600 ± 0.0499
- human_aging 1 none 0 acc ↑ 0.8341 ± 0.0250
- management 1 none 0 acc ↑ 0.9223 ± 0.0265
- marketing 1 none 0 acc ↑ 0.9573 ± 0.0133
- medical_genetics 1 none 0 acc ↑ 0.9700 ± 0.0171
- miscellaneous 1 none 0 acc ↑ 0.9425 ± 0.0083
- nutrition 1 none 0 acc ↑ 0.9020 ± 0.0170
- professional_accounting 1 none 0 acc ↑ 0.7766 ± 0.0248
- professional_medicine 1 none 0 acc ↑ 0.9338 ± 0.0151
- virology 1 none 0 acc ↑ 0.5723 ± 0.0385
- social sciences 2 none acc ↑ 0.9110 ± 0.0050
- econometrics 1 none 0 acc ↑ 0.8070 ± 0.0371
- high_school_geography 1 none 0 acc ↑ 0.9495 ± 0.0156
- high_school_government_and_politics 1 none 0 acc ↑ 0.9845 ± 0.0089
- high_school_macroeconomics 1 none 0 acc ↑ 0.9205 ± 0.0137
- high_school_microeconomics 1 none 0 acc ↑ 0.9664 ± 0.0117
- high_school_psychology 1 none 0 acc ↑ 0.9486 ± 0.0095
- human_sexuality 1 none 0 acc ↑ 0.9084 ± 0.0253
- professional_psychology 1 none 0 acc ↑ 0.8742 ± 0.0134
- public_relations 1 none 0 acc ↑ 0.7727 ± 0.0401
- security_studies 1 none 0 acc ↑ 0.8204 ± 0.0246
- sociology 1 none 0 acc ↑ 0.9602 ± 0.0138
- us_foreign_policy 1 none 0 acc ↑ 0.9400 ± 0.0239
- stem 2 none acc ↑ 0.8503 ± 0.0061
- abstract_algebra 1 none 0 acc ↑ 0.7100 ± 0.0456
- anatomy 1 none 0 acc ↑ 0.8444 ± 0.0313
- astronomy 1 none 0 acc ↑ 0.9605 ± 0.0158
- college_biology 1 none 0 acc ↑ 0.9722 ± 0.0137
- college_chemistry 1 none 0 acc ↑ 0.6400 ± 0.0482
- college_computer_science 1 none 0 acc ↑ 0.8300 ± 0.0378
- college_mathematics 1 none 0 acc ↑ 0.7100 ± 0.0456
- college_physics 1 none 0 acc ↑ 0.8529 ± 0.0352
- computer_security 1 none 0 acc ↑ 0.8600 ± 0.0349
- conceptual_physics 1 none 0 acc ↑ 0.9362 ± 0.0160
- electrical_engineering 1 none 0 acc ↑ 0.8276 ± 0.0315
- elementary_mathematics 1 none 0 acc ↑ 0.9074 ± 0.0149
- high_school_biology 1 none 0 acc ↑ 0.9387 ± 0.0136
- high_school_chemistry 1 none 0 acc ↑ 0.8473 ± 0.0253
- high_school_computer_science 1 none 0 acc ↑ 0.9200 ± 0.0273
- high_school_mathematics 1 none 0 acc ↑ 0.6630 ± 0.0288
- high_school_physics 1 none 0 acc ↑ 0.8411 ± 0.0299
- high_school_statistics 1 none 0 acc ↑ 0.8704 ± 0.0229
- machine_learning 1 none 0 acc ↑ 0.7768 ± 0.0395
Groups Version Filter n-shot Metric Value Stderr
mmlu 2 none acc ↑ 0.8469 ± 0.0029
- humanities 2 none acc ↑ 0.7858 ± 0.0058
- other 2 none acc ↑ 0.8725 ± 0.0057
- social sciences 2 none acc ↑ 0.9110 ± 0.0050
- stem 2 none acc ↑ 0.8503 ± 0.0061

MMLU - Massive Multitask Language Understanding, multiple-choice questions across 57 subjects (math, history, law, medicine, etc.).

GGUF Version

GGUF quantizations available here llmfan46/Qwen3.5-27B-Writer-V2-uncensored-heretic-GGUF.


ConicCat/Qwen3.5-27B-Writer-V2

A tentative second version. Hopefully, it's better.

A writing & roleplay finetune of Qwen3.5 27B. The primary emphasis is on writing quality as it strongly generalizes across both domains.

The basic idea is to use a curriculum learning setup to overcome the lack of high quality roleplay data by first training on lower quality
roleplay data, then training on higher quality writing data. Starting from ConicCat/Qwen3.5-Antirep-27B, the model was trained on a roughly equal mixture of instruct / roleplay / writing data for three epochs. The model was then trained for
eleven epochs on a smaller dataset of book chunks.

Recommended Settings

  • Chatml template with <think>\n\n</think>\n prefill or <think>\n prefill. Should think less!
  • temperature = 0.7
  • top_p = 0.95
  • A moderate dry penalty of ~ 0.4-0.8 should work well.
  • For quants, Q4_K_M runs well with ~100k context on 24GB Vram
  • IQ4_XS should fit on 16GB Vram with about 20-24k context with the vulkan backend, although it's pretty tight and may require some fiddling around with open programs e.t.c.

Datasets

  • ConicCat/AntiRep to mitigate repetitition.

  • internlm/Condor-SFT-20K for instruct; even though instruct capabilities are not the primary focus, adding some instruct data helps mitigate forgetting and maintains general intellect and instruction following capabilites.

  • ConicCat/Gutenberg-SFT. A reformatted version of the original Gutenberg DPO dataset by jondurbin for SFT with some slight augmentation to address many of the samples being overly long.

  • ConicCat/MiniC2_V3.2. The venerable C2, with cleaned and reformatted system prompts, and all user / assistant turns replaced by V3.2.

  • A dataset of backtranslated books. Unfortunately, I am unable to release this set as all of the data is under copyright.

README history 5 versions

The author's README evolved over time. Click a version to see its content at that point.

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