LMSYS Arena Launches AutoEval: Day-1 Model Ratings via Reward Models

arena · x · 2026-08-06

LMSYS Arena has introduced AutoEval to its leaderboards to address the delay in accumulating human votes. AutoEval uses a Reward Model (RM) trained to capture human preferences to automatically generate proxy votes, providing rapid, calibrated Day-1 feedback when a model launches. Once enough real human votes are gathered, the system updates and validates these scores, helping the community identify the best models for real-world tasks much faster.

Original post →

More from Models

Models channel →