[fix] fix order bug Update arena_hard.py

[bittersweet1999]

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[Copilot]

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Comments suppressed due to low confidence (1)

opencompass/datasets/subjective/arena_hard.py:149

• Removing sorted() now returns keys in insertion order, which may differ from the previous behavior. Ensure that this change aligns with the intended order for win rate calculation.

names = list(elo_ratings.keys())

[acylam]

Might be more robust to join scores to the stats dataframe on model_name, but this will do for now.

[tonysy]

Agree with Junyao's comments, please consider join the scores to stats. @bittersweet1999