Instructions to use donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake")

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake")
model = AutoModelForCausalLM.from_pretrained("donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake", device_map="auto")

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Use Docker

docker model run hf.co/donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake

SGLang

How to use donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Docker Model Runner
How to use donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake with Docker Model Runner:
```
docker model run hf.co/donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake
```

Llama-2-13b-KronQ-W3A16-g128-fake / README.md

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	---
	base_model: meta-llama/Llama-2-13b-hf
	language:
	- en
	license: llama2
	pipeline_tag: text-generation
	library_name: transformers
	tags:
	- kronq
	- quantization
	- group-quantization
	- fake-quant
	- fp16
	---

	# Llama-2-13b — KronQ W3A16 g128 (fake-quant fp16)

	Paper: [arXiv:2607.07964](https://arxiv.org/abs/2607.07964) · Code: [GitHub](https://github.com/Intelligent-Computing-Lab-Panda/KronQ)

	> ⚠️ Fake-quant fp16 checkpoint. 3-bit group-128 weights stored in fp16 (KronQ does not pack int3) — same size as bf16, for PPL/accuracy reproduction. For deployable low-bit see the W4A16-g128 / W2A16-g128 (packed) repos.

	[Llama-2-13b](https://huggingface.co/meta-llama/Llama-2-13b-hf) quantized to 3-bit weights (group 128) with KronQ, exported as a standard fp16 model.

	## Results (WikiText-2, seqlen 2048)

	Perplexity: 5.135

	Zero-shot accuracy:

	\| PIQA \| ARC-E \| ARC-C \| HellaSwag \| WinoGrande \| BoolQ \| OBQA \| Average \|
	\|---\|---\|---\|---\|---\|---\|---\|---\|
	\| 79.22 \| 76.30 \| 48.72 \| 77.53 \| 72.14 \| 81.62 \| 44.60 \| 68.59 \|

	(lm-evaluation-harness 0-shot.)

	## Usage

	Loads as a standard fp16 model (no KronQ code):

	```python
	from transformers import AutoModelForCausalLM
	m = AutoModelForCausalLM.from_pretrained("donghyunli/Llama-2-13b-KronQ-W3A16-g128-fake", torch_dtype="float16", device_map="auto")
	```

	## Recipe

	Group-128 asymmetric W3, weight-only, `--alpha 0.25`, `--act_order`, BiIP, raw H_G.

	## License

	Derivative of Llama-2-13b — [llama2 license](https://ai.meta.com/llama/license/).