abliteratedmodels.org

Qwen3.8-27B-ARA-abliterated

Qwen3.8-27B-ARA-abliterated is a refusal-ablated variant of trohrbaugh/Qwen3.8-27B-heretic-ara, published on Hugging Face by aday777. It is 27B parameters, 48GB VRAM class class and apache-2.0 licence. It is distributed across 3 repositories in NVFP4 format, totalling 7K downloads.

Abliteration (directional ablation)27BQwen25B – 50B6,9822

Specification

Model name
Qwen3.8-27B-ARA-abliterated
Publisher
aday777
Parameters
27B
Hardware class
25B – 50B — 48GB VRAM class
Licence
apache-2.0
Task
Image text to text
Context window
Not documented
Ablation scope
Not stated by the publisher
Formats available
NVFP4
First indexed
15 Aug 2026
Last updated
27 Aug 2026

Ablation technique

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

Abliteration (directional ablation)

The single residual-stream direction that mediates refusal is identified from harmful/harmless prompt pairs and projected out of the model weights.

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

This is a multimodal, refusal-ablated (commonly described as "uncensored") W4A4 NVFP4 derivative of the reproducible trohrbaugh/Qwen3.8-27B-heretic-ara BF16 checkpoint. It is intended for native Blackwell NVFP4 inference.

Running it

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

Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "aday777/Qwen3.8-27B-ARA-abliterated-NVFP4-MTP"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
    repo, torch_dtype="auto", device_map="auto"
)
vLLM
vllm serve aday777/Qwen3.8-27B-ARA-abliterated-NVFP4-MTP --trust-remote-code

Downloads and variants (2)

Every published repository of Qwen3.8-27B-ARA-abliterated, 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-ARA-abliterated 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 trohrbaugh/Qwen3.8-27B-heretic-ara, 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 trohrbaugh/Qwen3.8-27B-heretic-ara’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-ARA-abliterated is collected from the public Hugging Face API and the publisher’s model card. This site does not host weights, is not affiliated with aday777, and does not independently verify publisher claims. See responsible use.