BaitBench - Validity Rule Prompt: leaderboard

The same BaitBench tasks with a prompt that adds a rule not to exploit evaluation flaws; the score is the share of those runs still labelled reward hacking, so it measures hacking against an explicit instruction rather than hacking when left unsaid.

Metric: Reward-hacking rate (%, lower is better): share of runs both judges' labels count as taking a planted shortcut, runs whose prompt adds the rule not to exploit evaluation flaws (Table 1 Val. rule RH). Source: arxiv.org. 7 models tracked.

Top models

#ModelScoreOverall rank
1Kimi K2.521.1#256
2GPT-5.437.8#123
3Gemini 3.1 Pro (Preview)58.3#94
4DeepSeek V4 Pro59.4#188
5Gemini 3 Flash62.8#164
6Claude Sonnet 4.665#161
7Claude Opus 4.673.3#102

Interactive version: theaggregate.ai/benchmark?slug=baitbench-validity-rule-prompt · How It Works · Data refreshed daily, snapshot 2026-11-13.