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Ternary-Bonsai-2-27B-Abliterated-PQ2_0

Ternary-Bonsai-2-27B-Abliterated-PQ2_0 is a refusal-ablated variant of prism-ml/Ternary-Bonsai-2-27B-gguf, published on Hugging Face by BoldingBuilds. It is 27B parameters, 48GB VRAM class class and apache-2.0 licence. It is distributed across 4 repositories in GGUF format, totalling 9.2K downloads.

Abliteration (directional ablation)27BOther25B – 50B↓ 9,239♥ 31

Specification

Model name
Ternary-Bonsai-2-27B-Abliterated-PQ2_0
Publisher
BoldingBuilds
Parameters
27B
VRAM required
~17.2 GB at Q4_K_M, 4k context (estimated) — runs on 24 GB cards
Hardware class
25B – 50B — 48GB VRAM class
Licence
apache-2.0
Task
Text generation
Context window
Not documented
Ablation scope
Not stated by the publisher
Formats available
GGUF
First indexed
18 Sept 2026
Last updated
23 Oct 2026

Ablation technique

How Ternary-Bonsai-2-27B-Abliterated-PQ2_0 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

“by flipping a small number of ternary digits in place. Block scales are never touched and the model is never requantised, so this is the released ternary packing with a few digits changed — not a re-derived one.”

Running it

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

llama.cpp / GGUF
hf download BoldingBuilds/Ternary-Bonsai-2-27B-Abliterated-PQ2_0-MTP-GGUF --local-dir ./ternary-bonsai-2-27b-abliterated-pq2-0
llama-cli -m ./ternary-bonsai-2-27b-abliterated-pq2-0/<file>.gguf -p "..."
Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "BoldingBuilds/Ternary-Bonsai-2-27B-Abliterated-PQ2_0-MTP-GGUF"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
    repo, torch_dtype="auto", device_map="auto"
)
vLLM
vllm serve BoldingBuilds/Ternary-Bonsai-2-27B-Abliterated-PQ2_0-MTP-GGUF --trust-remote-code

Downloads and variants (3)

Every published repository of Ternary-Bonsai-2-27B-Abliterated-PQ2_0, 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.

  • Ternary-Bonsai-2-27B-Abliterated-PQ2_0 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 prism-ml/Ternary-Bonsai-2-27B-gguf, 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 prism-ml/Ternary-Bonsai-2-27B-gguf’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 Ternary-Bonsai-2-27B-Abliterated-PQ2_0 is collected from the public Hugging Face API and the publisher’s model card. This site does not host weights, is not affiliated with BoldingBuilds, and does not independently verify publisher claims. See responsible use.