Create README.md

README.md

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+---
+license: apache-2.0
+language:
+- en
+---
+
+# tulu-2-dpo-7b-ExPO
+
+The extrapolated (ExPO) model based on `allenai/tulu-2-dpo-7b` and `allenai/tulu-2-7b`, as in the "[Weak-to-Strong Extrapolation Expedites Alignment](https://arxiv.org/abs/2404.16792)" paper.
+
+Specifically, we obtain this model by extrapolating from the weights of the SFT and DPO/RLHF checkpoints, achieving superior alignment with human preference.