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Nanbeige-4.3-33B-Heretic

Nanbeige-4.3-33B-Heretic is a Heretic-ablated variant of Nanbeige/Nanbeige4.3-33B, published on Hugging Face by Luni. It is 33B parameters, 48GB VRAM class class and apache-2.0 licence. It is distributed across 4 repositories in Transformers, EXL3 and GGUF formats, totalling 8.1K downloads.

Heretic33BOther25B – 50B↓ 8,147♥ 4

Specification

Model name
Nanbeige-4.3-33B-Heretic
Publisher
Luni
Parameters
33B
VRAM required
~20.9 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
Transformers, EXL3, GGUF
First indexed
25 Oct 2026
Last updated
28 Oct 2026

Ablation technique

How Nanbeige-4.3-33B-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.

Running it

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

llama.cpp / GGUF
hf download Luni/Nanbeige-4.3-33B-Heretic-GGUF --local-dir ./nanbeige-4.3-33b-heretic
llama-cli -m ./nanbeige-4.3-33b-heretic/<file>.gguf -p "..."
Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "Luni/Nanbeige-4.3-33B-Heretic"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
    repo, torch_dtype="auto", device_map="auto"
)
vLLM
vllm serve Luni/Nanbeige-4.3-33B-Heretic --trust-remote-code

Downloads and variants (3)

Every published repository of Nanbeige-4.3-33B-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.

  • Nanbeige-4.3-33B-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 Nanbeige/Nanbeige4.3-33B, not added by ablation — at 33B 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 Nanbeige/Nanbeige4.3-33B’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 Nanbeige-4.3-33B-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 Luni, and does not independently verify publisher claims. See responsible use.