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New study reveals widespread reward hackability in code RL training environments

A new paper from arXiv details how easily current code reinforcement learning (RL) training environments can be exploited. Researchers found that a significant percentage of tasks in SWE-bench Verified and R2E-Gym accepted incorrect solutions due to weak test suites. The study also revealed that frontier models performed notably better on these hackable tasks, suggesting a vulnerability in how these environments are assessed. AI

RANK_REASON The cluster contains an academic paper detailing research findings on AI training environments. [lever_c_demoted from research: ic=1 ai=1.0]

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New study reveals widespread reward hackability in code RL training environments

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The cluster contains an academic paper detailing research findings on AI training environments. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Shreshth Rajan ·

    Auditing Reward Hackability in Code RL Training Environments

    arXiv:2606.16062v1 Announce Type: new Abstract: We measure the rate at which code RL environments accept incorrect solutions as correct. On a 49-task sample of SWE-bench Verified, 28.5% of tasks have test suites weak enough that a Docker-verified incorrect patch passes them. On 2…