ZYao720/

WebArbiter-Data

Two-stage training data for the WebArbiter process reward model Published at ICLR 2026 Paper | Code | Website | Collection | Demo

This repository contains the training data for WebArbiter, a principle-guided reasoning Process Reward Model (PRM) for web agents. We build on the WebPRM Collection (Chae et al., 2025), which comprises ~30k step-level preference pairs drawn from the Mind2Web environment. WebArbiter is trained via a… See the full description on the dataset page: https://huggingface.co/datasets/ZYao720/WebArbiter-Data.