Author

Jiayun Wang

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Jul 2026

Reward-Free Evolving Agents via Pairwise Validator

A pairwise validator is proposed: a frozen LLM that, given the parent and child candidate, returns a binary verdict on which is better, which mitigates the need for strict scale calibration.

Minghao Liu, Yu Wang, Jiayun Wang et al. · arXiv.org · 0 citations