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README.md

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 <p align="center" style="font-size:28px"><b>🥇 HiPhO: High School Physics Olympiad Benchmark</b></p>
 <p align="center">
+<a href="https://phyarena.github.io/">[🏆 Leaderboard]</a>
 <a href="https://huggingface.co/datasets/SciYu/HiPhO">[📊 Dataset]</a>
 <a href="https://github.com/SciYu/HiPhO">[✨ GitHub]</a>
 <a href="https://huggingface.co/papers/2509.07894">[📄 Paper]</a>
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 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/license/mit)
 </div>
 
+🏆 **New (Sep. 16):** We launched "[**PhyArena**](https://phyarena.github.io/)", a physics reasoning leaderboard incorporating the HiPhO benchmark.
 
 ## 🌐 Introduction
 
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   <img src="intro/HiPhO_main_results.png" alt="main results medal table" width="700"/>
 </div>
 
-- **Closed-source reasoning MLLMs** lead the benchmark, earning **6–12 gold medals** (Top 5: Gemini-2.5-Pro, Gemini-2.5-Flash, GPT-5, o3, Grok-4)
+- **Closed-source reasoning MLLMs** lead the benchmark, earning **6–12 gold medals** (Top 5: Gemini-2.5-Pro, Gemini-2.5-Flash-Thinking, GPT-5, o3, Grok-4)
 - **Open-source MLLMs** mostly score at or below the **bronze** level 
 - **Open-source LLMs** demonstrate **stronger reasoning** and generally outperform open-source MLLMs