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 FastChat is an open platform for training, serving, and evaluating large language model based chatbots.
 - FastChat powers Chatbot Arena (https://chat.lmsys.org/), serving over 10 million chat requests for 70+ LLMs.
-- Chatbot Arena has collected over 500K human votes from side-by-side LLM battles to compile an online [LLM Elo leaderboard](https://huggingface.co/spaces/lmsys/chatbot-arena-leaderboard).
+- Chatbot Arena has collected over 500K human votes from side-by-side LLM battles to compile an online [LLM Elo leaderboard](https://leaderboard.lmsys.org).
 
 FastChat's core features include:
 - The training and evaluation code for state-of-the-art models (e.g., Vicuna, MT-Bench).

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