Qwen3.8-27B-OBLITERATED-OptiQ-4bit

npario/Qwen3.8-27B-OBLITERATED-OptiQ-4bit

Qwen3.8-27B-OBLITERATED-OptiQ-4bit is a image-text-to-text model from npario. Use it for the image-text-to-text task on the model card, and read the license before you ship it in a product. It is set up for mlx. The card lists the license as apache-2.0.

Built with mlx-optiq, the MLX-native toolkit to quantize, fine-tune, and serve LLMs locally on Apple Silicon, no PyTorch and no cloud. All OptiQ quants · Docs

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Parameters

26.9B

20.7 GB on disk

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Public

Hugging Face

Repo makeup

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.safetensors20.7 GB · 100%

Parameter types

How the weights are stored.

U3226.9B · 98%

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Base models

OBLITERATUS/Qwen3.8-27B-OBLITERATED

Model card

From the Hugging Face model README

mlx-community/Qwen3.8-27B-OBLITERATED-OptiQ-4bit

Built with mlx-optiq, the MLX-native toolkit to quantize, fine-tune, and serve LLMs locally on Apple Silicon, no PyTorch and no cloud. All OptiQ quants · Docs

OptiQ mixed-precision quant of OBLITERATUS/Qwen3.8-27B-OBLITERATED, a Qwen3.8-family vision-language model with a bundled MTP speculation head. 21 GB on disk.

What it is

Property	Value
Base	OBLITERATUS/Qwen3.8-27B-OBLITERATED (Qwen3.8, 27B)
Method	OptiQ mixed-precision, per-layer 4/8-bit
Bit allocation	Reused from the Qwen3.8-27B OptiQ recipe: the architecture is identical, so the per-layer sensitivity ranking transfers directly and no per-model sweep is needed
Layer split	237 components at 4-bit, 261 at 8-bit
Group size	64
On disk	21 GB
MTP	Speculation head preserved in `optiq/mtp.safetensors`
Vision	bf16 vision tower kept in `optiq/optiq_vision.safetensors` for image input

Following the naming llama.cpp uses for its mixed quants, the "4bit" label denotes the family, not the weighted average.

Run it

Qwen3.8 and the MTP/vision sidecars register through OptiQ, so import optiq once before loading:

pip install "mlx-optiq>=0.4.27"

import optiq  # registers the arch + MTP/vision sidecars
from mlx_lm import load, generate

model, tok = load("mlx-community/Qwen3.8-27B-OBLITERATED-OptiQ-4bit")
prompt = tok.apply_chat_template(
    [{"role": "user", "content": "Explain mixed-precision quantization in two sentences."}],
    tokenize=False, add_generation_prompt=True,
)
print(generate(model, tok, prompt=prompt, max_tokens=400))

For image input plus an OpenAI- and Anthropic-compatible endpoint with mixed-precision KV cache:

optiq serve --model mlx-community/Qwen3.8-27B-OBLITERATED-OptiQ-4bit

This is a reasoning model, so give it a generous token budget.