GPT-oss-20b-abliterated-uncensored
20BGPT-OSSuncensored
from huihui-ai/Huihui-gpt-oss-20b-BF16-abliterated
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ai_Huihui-gpt-oss-20b-abliterated
ai_Huihui-gpt-oss-20b-abliterated is a refusal-ablated variant of huihui-ai/Huihui-gpt-oss-20b-BF16-abliterated, published on Hugging Face by bartowski. It is 20B parameters and 24GB VRAM class class. It is distributed across 3 repositories in GGUF format, totalling 16K downloads.
Specification
- Model name
- ai_Huihui-gpt-oss-20b-abliterated
- Source repository
- bartowski/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUF
- Publisher
- bartowski
- Parameters
- 20B
- Hardware class
- 10B – 25B — 24GB VRAM class
- Licence
- Not declared
- Task
- Text generation
- Context window
- Not documented
- Ablation scope
- Not stated by the publisher
- Formats available
- GGUF
- First indexed
- 7 Aug 2025
- Last updated
- 13 Aug 2026
Ablation technique
How ai_Huihui-gpt-oss-20b-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
“All quants made using imatrix option with dataset from here”
Running it
Commands are templates — confirm the exact repository and quant file before use.
llama.cpp / GGUF
hf download bartowski/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUF --local-dir ./ai-huihui-gpt-oss-20b-abliterated
llama-cli -m ./ai-huihui-gpt-oss-20b-abliterated/<file>.gguf -p "..."Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer
repo = "bartowski/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUF"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
repo, torch_dtype="auto", device_map="auto"
)vLLM
vllm serve bartowski/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUF --trust-remote-codeDownloads and variants (2)
Every published repository of ai_Huihui-gpt-oss-20b-abliterated, including quantised re-releases by other authors.
| Repository | Format | Downloads |
|---|---|---|
| bartowski/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUFsource | GGUF | 11.1K |
| Kai0kenX20/huihui-ai_Huihui-gpt-oss-20b-BF16-abliterated-GGUF | GGUF | 4.9K |
Security-team assessment
Derived from this model’s metadata and the publisher’s claims — not from benchmarks run by this site.
- ai_Huihui-gpt-oss-20b-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 huihui-ai/Huihui-gpt-oss-20b-BF16-abliterated, not added by ablation — at 20B 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.
- No licence is declared on this repository, which is a compliance problem in itself. Resolve it against the base model’s terms before use.
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 ai_Huihui-gpt-oss-20b-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 bartowski, and does not independently verify publisher claims. See responsible use.