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mradermacher/LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL-GGUF

mradermacher Lfm 1.2B GGUF second-order 128K ctx
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Response includes
  • classification m3
  • files 14
  • hub_downloads_all_time 9,244
  • author_summary 3324 models
  • readme_text full
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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
9K
2K last 30d - stable
Likes
6
Model age
7mo ago
created 2026-02-16

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
Now10.1K→from1.1K↑790%
6894.1K7.6K11K1.1K on Feb 1810.1K on Oct 11FebAprJunAugOct
Feb 18 → Oct 11 · 73 snapshots · spans 235 days

Genealogy 0 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.

Metadata

License
apache-2.0
Languages
en
Quantizations
F16 IQ4 Q2_K Q3_K Q4_K Q5_K Q6_K Q8_0
Tags
transformers gguf unsloth finetune heretic uncensored abliterated All use cases bfloat16 creative creative writing fiction writing

Related

Total size
9.87 GB
Files
14
Quantizations
9
Registered
2026-08-22 13:56
Last updated on HF
2026-02-16 17:04

Files by quantization

F16 1 file 2.18 GB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.f16.gguf 2.18 GB c6222ec7 download
Q8_0 1 file 1.16 GB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q8_0.gguf 1.16 GB 37c96def download
Q6_K 1 file 918 MB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q6_K.gguf 918 MB 430175c7 download
Q5_K 2 files 1.55 GB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q5_K_M.gguf 804 MB 7afb0ce6 download
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q5_K_S.gguf 787 MB 88188dc7 download
Q4_K 2 files 1.33 GB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q4_K_M.gguf 697 MB e39307ca download
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q4_K_S.gguf 668 MB 14904312 download
IQ4 1 file 638 MB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.IQ4_XS.gguf 638 MB 6007b42d download
Q3_K 3 files 1.67 GB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q3_K_L.gguf 606 MB ac664981 download
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q3_K_M.gguf 573 MB f1c27806 download
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q3_K_S.gguf 532 MB 2feb0cfa download
Q2_K 1 file 461 MB
LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL.Q2_K.gguf 461 MB 8b22a316 download
Auxiliary files 2 files 8.00 KB
README.md 5.21 KB 759c7fa2 download
.gitattributes 2.79 KB f604e889 download

README current version from Hugging Face


base_model: DavidAU/LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL
datasets:

  • TeichAI/claude-4.5-opus-high-reasoning-250x
    language:
  • en
    library_name: transformers
    license: apache-2.0
    mradermacher:
    readme_rev: 1
    quantized_by: mradermacher
    tags:
  • unsloth
  • finetune
  • heretic
  • uncensored
  • abliterated
  • All use cases
  • bfloat16
  • creative
  • creative writing
  • fiction writing
  • plot generation
  • sub-plot generation
  • fiction writing
  • story generation
  • scene continue
  • storytelling
  • fiction story
  • science fiction
  • romance
  • all genres
  • story
  • writing
  • vivid prosing
  • vivid writing
  • fiction

About

static quants of https://huggingface.co/DavidAU/LFM2.5-1.2B-Thinking-Claude-4.6-Opus-Heretic-Uncensored-DISTILL

For a convenient overview and download list, visit our model page for this model.

weighted/imatrix quants seem not to be available (by me) at this time. If they do not show up a week or so after the static ones, I have probably not planned for them. Feel free to request them by opening a Community Discussion.

Usage

If you are unsure how to use GGUF files, refer to one of TheBloke's
READMEs
for
more details, including on how to concatenate multi-part files.

Provided Quants

(sorted by size, not necessarily quality. IQ-quants are often preferable over similar sized non-IQ quants)

Link Type Size/GB Notes
GGUF Q2_K 0.6
GGUF Q3_K_S 0.7
GGUF Q3_K_M 0.7 lower quality
GGUF Q3_K_L 0.7
GGUF IQ4_XS 0.8
GGUF Q4_K_S 0.8 fast, recommended
GGUF Q4_K_M 0.8 fast, recommended
GGUF Q5_K_S 0.9
GGUF Q5_K_M 0.9
GGUF Q6_K 1.1 very good quality
GGUF Q8_0 1.3 fast, best quality
GGUF f16 2.4 16 bpw, overkill

Here is a handy graph by ikawrakow comparing some lower-quality quant
types (lower is better):

image.png

And here are Artefact2's thoughts on the matter:
https://gist.github.com/Artefact2/b5f810600771265fc1e39442288e8ec9

FAQ / Model Request

See https://huggingface.co/mradermacher/model_requests for some answers to
questions you might have and/or if you want some other model quantized.

Thanks

I thank my company, nethype GmbH, for letting
me use its servers and providing upgrades to my workstation to enable
this work in my free time.

README history 2 versions

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

  1. 2026-02-16auto-patch README.md2199a0a5.2 KB
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  2. 2026-02-16uploaded from leia246b7d9414 B
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