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README.md
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---
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pipeline_tag: text-generation
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license: other
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language:
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- en
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- zh
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---
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# internlm2-chat-20b-ExPO
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The extrapolated (ExPO) model based on [`internlm2-chat-20b`](https://huggingface.co/internlm/internlm2-chat-20b) and [`internlm/internlm2-chat-20b-sft`](https://huggingface.co/internlm/internlm2-chat-20b-sft), as in the "[Weak-to-Strong Extrapolation Expedites Alignment](https://arxiv.org/abs/2404.16792)" paper.
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Specifically, we obtain this model by extrapolating from the weights of the SFT and DPO/RLHF checkpoints, achieving superior alignment with human preference.
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