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Model: HarimxChoi/WarpQuant-Llama-3-8B-R16E4H4
Source: Original Platform

README.md

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+---
+library_name: transformers
+license: other
+license_name: llama3
+license_link: LICENSE
+base_model: NousResearch/Meta-Llama-3-8B
+pipeline_tag: text-generation
+tags:
+  - llama-3
+  - text-generation
+  - quantization
+  - post-training-quantization
+  - warpquant
+  - hadamard-transform
+  - output-fisher
+  - pytorch
+  - llm
+language:
+  - en
+---
+
+# WarpQuant Llama 3 8B R16E4H4
+
+Llama 3 8B quantized with signed Hadamard rotation, block-GPTQ, and Output-Fisher weak-column recovery. Projection weights use a 3.5-bpw INT3 base, selected columns are restored in BF16, and the embedding and output head use group-128 INT4.
+
+[Technical report](https://harimxchoi.github.io/projects/warpquant/) · [GitHub](https://github.com/HarimxChoi/WarpQuant)
+
+## Payload and evaluation
+
+| Format | Text bpw | Payload | WikiText-2 PPL ↓ | ARC-299 ↑ | MMLU-13,943 ↑ |
+|---|---:|---:|---:|---:|---:|
+| BF16 | 16.00 | 14.965 GiB | 6.2559 | 50.50 | 41.04 |
+| Q4_K_M | 4.89 | 4.583 GiB | 6.4359 | 50.84 | 40.67 |
+| IQ3_S + imatrix | 3.66 | 3.429 GiB | 6.9929 | 44.15 | 39.87 |
+| **WarpQuant Fisher R16E4H4** | **3.6256** | **3.389 GiB** | **7.3446** | **45.49** | **38.99** |
+
+The repository stores the quantized values in BF16-compatible safetensors. The reported payload is the packed-equivalent analytical size including codes, scales, recovery values, and column indices.
+
+## Usage
+
+```python
+import torch
+from transformers import AutoModelForCausalLM, AutoTokenizer
+
+model_id = "HarimxChoi/WarpQuant-Llama-3-8B-R16E4H4"
+tokenizer = AutoTokenizer.from_pretrained(model_id)
+model = AutoModelForCausalLM.from_pretrained(
+    model_id,
+    torch_dtype=torch.bfloat16,
+    device_map="auto",
+)
+```
+
+## Citation
+
+```bibtex
+@misc{choi2026warpquant,
+  author = {Harim Choi},
+  title = {WarpQuant: Dual-Domain LLM Quantization via Hadamard Rotation and Output-Fisher Sensitivity},
+  year = {2026},
+  url = {https://harimxchoi.github.io/projects/warpquant/}
+}
+```