abliteratedmodels.org

Mew1-2.6B

Mew1-2.6B is a abliterated and uncensored variant of Unmid/Mew1-2.6B, published on Hugging Face by Unmid. It is 2.6B parameters, runs on a laptop CPU class and other licence. It is distributed across 5 repositories in GGUF and GGUF (imatrix) formats, totalling 11.3K downloads.

Abliteration + uncensored fine-tune2.6BOtherUnder 4B11,3411

Specification

Model name
Mew1-2.6B
Source repository
Unmid/Mew1-2.6B
Base model
Unmid/Mew1-2.6B
Publisher
Unmid
Parameters
2.6B
Hardware class
Under 4B — runs on a laptop CPU
Licence
other
Task
Text generation
Context window
Not documented
Ablation scope
Not stated by the publisher
Formats available
GGUF, GGUF (imatrix)
First indexed
15 Aug 2026
Last updated
18 Aug 2026

Ablation technique

How Mew1-2.6B was modified, and what that implies.

Abliteration + uncensored fine-tune

Directional ablation combined with additional fine-tuning on unfiltered data, so behaviour diverges from the base model beyond refusal removal alone.

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

Mew1-2.6B is a 2.69B-parameter LFM2-family text-generation model released by Unmid. This is the canonical BF16 Transformers checkpoint; ready-to-run GGUF files are published separately in Unmid/Mew1-2.6B-GGUF.

Running it

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

llama.cpp / GGUF
hf download Unmid/Mew1-2.6B --local-dir ./mew1-2.6b
llama-cli -m ./mew1-2.6b/<file>.gguf -p "..."
Transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

repo = "Unmid/Mew1-2.6B"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForCausalLM.from_pretrained(
    repo, torch_dtype="auto", device_map="auto"
)
vLLM
vllm serve Unmid/Mew1-2.6B --trust-remote-code

Downloads and variants (4)

Every published repository of Mew1-2.6B, including quantised re-releases by other authors.

RepositoryFormatDownloads
Unmid/Mew1-2.6BsourceGGUF6.1K
mradermacher/Mew1-2.6B-i1-GGUFGGUF (imatrix)4.1K
mradermacher/Mew1-2.6B-GGUFGGUF986
Unmid/Mew1-2.6B-GGUFGGUF204

Security-team assessment

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

  • Mew1-2.6B 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 Unmid/Mew1-2.6B, not added by ablation — at 2.6B parameters, expect a small model’s reasoning and a high error rate on exploit detail.
  • The publisher does not state which layers were ablated, so assume nothing about refusal consistency — probe it directly.
  • This release adds fine-tuning on unfiltered data, so its behaviour diverges from the base model beyond refusal removal — differences you measure cannot be attributed to ablation alone.
  • Declared licence is other, but the terms that bind you are Unmid/Mew1-2.6B’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 Mew1-2.6B is collected from the public Hugging Face API and the publisher’s model card. This site does not host weights, is not affiliated with Unmid, and does not independently verify publisher claims. See responsible use.