---
title: "Austin Xu — papers of 2026 — 2 papers, the most cited first"
description: "Austin Xu — papers of 2026: 2 papers on Elamur Research, the most cited first — what each work is about in our own words."
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# Austin Xu — papers of 2026 — 2 papers, the most cited first

2 papers · [all years of Austin Xu](https://md.research.elamur.ai/free/en/authors/austin-xu/#years)

**[J4R: Learning to Judge with Equivalent Initial State Group Relative Policy Optimization](https://md.research.elamur.ai/free/en/papers/xu-2026-j4r-learning-judge-equivalent-initial/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Austin Xu, Yilun Zhou, Xuan-Phi Nguyen, et al.*2026 · 3 citations*

**[Hard2Verify: A Step-Level Verification Benchmark for Open-Ended Frontier Math](https://md.research.elamur.ai/free/en/papers/pandit-2026-hard2verify-step-level-verification-benchmark/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Shrey Pandit, Austin Xu, Xuan-Phi Nguyen, et al.*2026 · 2 citations*