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Llama3-8B-Chinese-Chat-ExPO - GGUF

Original model description:

license: llama3 language: - en - zh

Llama3-8B-Chinese-Chat-ExPO

The extrapolated (ExPO) model based on shenzhi-wang/Llama3-8B-Chinese-Chat and meta-llama/Meta-Llama-3-8B-Instruct, as in the "Weak-to-Strong Extrapolation Expedites Alignment" paper.

Specifically, we obtain this model by extrapolating (alpha = 0.3) from the weights of the SFT and DPO/RLHF checkpoints, achieving superior alignment with human preference.

Note: This is an experimental model, as I have not comprehensively evaluated its Chinese ability. Unexpected issues may occur when we apply extrapolation to the DPO/RLHF alignment training for new languages (e.g., Chinese).

Evaluation Results

Evaluation results on the AlpacaEval 2.0 benchmark (you can find the evaluation outputs on the official GitHub repo):

Win Rate (Ori) LC Win Rate (Ori) Win Rate (+ ExPO) LC Win Rate (+ ExPO)
HuggingFaceH4/zephyr-7b-alpha 6.7% 10.0% 10.6% 13.6%
HuggingFaceH4/zephyr-7b-beta 10.2% 13.2% 11.1% 14.0%
berkeley-nest/Starling-LM-7B-alpha 15.0% 18.3% 18.2% 19.5%
Nexusflow/Starling-LM-7B-beta 26.6% 25.8% 29.6% 26.4%
snorkelai/Snorkel-Mistral-PairRM 24.7% 24.0% 28.8% 26.4%
RLHFlow/LLaMA3-iterative-DPO-final 29.2% 36.0% 32.7% 37.8%
internlm/internlm2-chat-1.8b 3.8% 4.0% 5.2% 4.3%
internlm/internlm2-chat-7b 20.5% 18.3% 28.1% 22.7%
internlm/internlm2-chat-20b 36.1% 24.9% 46.2% 27.2%
allenai/tulu-2-dpo-7b 8.5% 10.2% 11.5% 11.7%
allenai/tulu-2-dpo-13b 11.2% 15.5% 15.6% 17.6%
allenai/tulu-2-dpo-70b 15.4% 21.2% 23.0% 25.7%

Evaluation results on the MT-Bench benchmark (you can find the evaluation outputs on the official GitHub repo):

Original + ExPO
HuggingFaceH4/zephyr-7b-alpha 6.85 6.87
HuggingFaceH4/zephyr-7b-beta 7.02 7.06
berkeley-nest/Starling-LM-7B-alpha 7.82 7.91
Nexusflow/Starling-LM-7B-beta 8.10 8.18
snorkelai/Snorkel-Mistral-PairRM 7.63 7.69
RLHFlow/LLaMA3-iterative-DPO-final 8.08 8.45
internlm/internlm2-chat-1.8b 5.17 5.26
internlm/internlm2-chat-7b 7.72 7.80
internlm/internlm2-chat-20b 8.13 8.26
allenai/tulu-2-dpo-7b 6.35 6.38
allenai/tulu-2-dpo-13b 7.00 7.26
allenai/tulu-2-dpo-70b 7.79 8.03
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