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Speculative reward hacking in coding agents

I audited thousands of agent rollouts in DeepSWE-1.1. Over 80% contained reasoning about an imagined grader. Yet no grader/verifier is mentioned in prompts nor accessible to the agents. Agents reasoned things like: " Let me look at the problem from the grader's perspective " and referred to " hidde…

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  1. 2026-09-28 23:25 · r/LocalLLaMA
    Speculative reward hacking in coding agents

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