abliteratedmodels.org

Qwen3.8-27B-heretic

Qwen3.8-27B-heretic is a Heretic-ablated variant of Qwen/Qwen3.8-27B, published on Hugging Face by coder3101. It is 27B parameters, 48GB VRAM class class and apache-2.0 licence. It is distributed across 29 repositories in MLX, Transformers, FP8 and GGUF formats, totalling 17.6K downloads.

Heretic27BQwen25B – 50B17,5984

Specification

Model name
Qwen3.8-27B-heretic
Publisher
coder3101
Parameters
27B
Hardware class
25B – 50B — 48GB VRAM class
Licence
apache-2.0
Task
Image text to text
Context window
256K tokens (as documented)
Ablation scope
Not stated by the publisher
Formats available
MLX, Transformers, FP8, GGUF, Full precision, GGUF (imatrix)
First indexed
14 Aug 2026
Last updated
5 Sept 2026

Ablation technique

How Qwen3.8-27B-heretic was modified, and what that implies.

Heretic

Automated directional ablation via the Heretic toolchain, which searches for the refusal direction and applies it with a KL-divergence budget so general capability is preserved.

Reported scope: Not stated by the publisher. Publishers frequently omit this, so verify behaviour empirically rather than assuming full coverage.

From the publisher’s model card

Following the widespread community adoption of the Qwen3.5 and Qwen3.6 series, we are pleased to introduce Qwen3.8, the most capable generation in the Qwen open-model family to date.

Running it

Commands are templates — confirm the exact repository and quant file before use.

llama.cpp / GGUF
hf download mradermacher/Qwen3.8-27B-Heretic-GGUF --local-dir ./qwen3.8-27b-heretic
llama-cli -m ./qwen3.8-27b-heretic/<file>.gguf -p "..."
Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "coder3101/Qwen3.8-27B-heretic"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
    repo, torch_dtype="auto", device_map="auto"
)
vLLM
vllm serve coder3101/Qwen3.8-27B-heretic --trust-remote-code

Downloads and variants (28)

Every published repository of Qwen3.8-27B-heretic, including quantised re-releases by other authors.

Security-team assessment

Derived from this model’s metadata and the publisher’s claims — not from benchmarks run by this site.

  • Qwen3.8-27B-heretic will attempt offensive-security prompts that a hosted commercial model declines, which is what makes it usable for red-team corpus generation and for measuring what an unaligned model of this class produces.
  • Capability is inherited from Qwen/Qwen3.8-27B, not added by ablation — at 27B parameters, expect roughly the base model’s competence, minus some instruction-following fidelity.
  • The publisher does not state which layers were ablated, so assume nothing about refusal consistency — probe it directly.
  • Declared licence is apache-2.0, but the terms that bind you are Qwen/Qwen3.8-27B’s — a re-release cannot grant more than its parent.

Handling: run it isolated, put moderation in front of it if anyone outside your team can reach it, and verify the weights before loading — these are third-party artifacts. Full handling and licence guidance.

Metadata for Qwen3.8-27B-heretic is collected from the public Hugging Face API and the publisher’s model card. This site does not host weights, is not affiliated with coder3101, and does not independently verify publisher claims. See responsible use.