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Official AQLM quantization of meta-llama/Llama-2-7b-hf.

For this quantization, we used 1 codebook of 16 bits.

Selected evaluation results for this and other models:

Model AQLM scheme WikiText 2 PPL Model size, Gb Hub link
Llama-2-7b (THIS) 1x16 5.92 2.4 Link
Llama-2-7b 2x8 6.69 2.2 Link
Llama-2-7b 8x8 6.61 2.2 Link
Llama-2-13b 1x16 5.22 4.1 Link
Llama-2-70b 1x16 3.83 18.8 Link
Llama-2-70b 2x8 4.21 18.2 Link
Mixtral-8x7b 1x16 3.35 12.6 Link
Mixtral-8x7b-Instruct 1x16 - 12.6 Link

UPD (20.02.2024). We applied global finetuning on top of quantized model and improved results compared to first revision.

To learn more about the inference, as well as the information on how to quantize models yourself, please refer to the official GitHub repo.

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Collection including ISTA-DASLab/Llama-2-7b-AQLM-2Bit-1x16-hf