---
pipeline_tag: text-generation
license: other
language:
- en
- zh
---

# internlm2-chat-1_8b-ExPO

The extrapolated (ExPO) model based on [`internlm2-chat-1_8b`](https://huggingface.co/internlm/internlm2-chat-1_8b) and [`internlm/internlm2-chat-1_8b-sft`](https://huggingface.co/internlm/internlm2-chat-1_8b-sft), as in the "[Weak-to-Strong Extrapolation Expedites Alignment](https://arxiv.org/abs/2404.16792)" paper.

Specifically, we obtain this model by extrapolating **(alpha = 0.5)** from the weights of the SFT and DPO/RLHF checkpoints, achieving superior alignment with human preference.