Judgment Bias Evaluation on JudgeBiasBench (test)
73.8Length Bias ScoreAuto-J-13B
Evaluation results
| Method | Links | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Auto-J-13BJudge Type=Fine-tuned generative judge2026.03 | 73.8 | 42.4 | 61.9 | 45.5 | 50.3 | 32.7 | 75.1 | 18.1 | 23.8 | 31.6 | 19.2 | 15.5 | 38.5 | |
| GPT-3.5-TurboJudge Type=General-purpose generative judge2026.03 | 66 | 28.2 | 41.1 | 35.3 | 39.7 | 22.3 | 45.5 | 16.3 | 21.7 | 43.6 | 13.5 | 52.8 | 35.2 | |
| JudgeLM-7BJudge Type=Fine-tuned generative judge2026.03 | 59.1 | 28.9 | 35.9 | 26.3 | 38.8 | 23.9 | 30.7 | 27.3 | 40.4 | 40.8 | 9.7 | 31.5 | 31.6 | |
| Prometheus-7B-V2.0Judge Type=Fine-tuned generative judge2026.03 | 51.2 | 62.5 | 53.2 | 68.4 | 45.4 | 51.4 | 68.6 | 27.8 | 30.1 | 25.2 | 15.2 | 30.8 | 42.4 | |
| Qwen3 8BJudge Type=General-purpose generative judge2026.03 | 41.2 | 12.9 | 22.4 | 17.7 | 26.9 | 10.6 | 12.5 | 21.7 | 29.5 | 21.7 | 7.1 | 45.8 | 22.2 | |
| Llama-3.1-8B-Instruct-RM-RB2Judge Type=Reward model judge2026.03 | 38.2 | 6.3 | 35.2 | 20.7 | 19.8 | 8.6 | 18.9 | 32.5 | 39.3 | — | — | — | 23.3 | |
| Qwen2.5-7B-InstructJudge Type=General-purpose generative judge2026.03 | 36.2 | 20.9 | 42.2 | 23.3 | 27.6 | 12.3 | 15.9 | 22 | 28.8 | 31 | 33.7 | 30 | 26.9 | |
| Llama-3.1-8B-Base-RM-RB2Judge Type=Reward model judge2026.03 | 31.8 | 11.7 | 38.4 | 20.6 | 18.8 | 9.3 | 38.2 | 35.2 | 43.1 | — | — | — | 26.6 | |
| Llama-3.1-Tulu-3-8B-RL-RM-RB2Judge Type=Reward model judge2026.03 | 30.8 | 9.8 | 40.4 | 18.6 | 20.5 | 12.4 | 14.8 | 33.5 | 55 | — | — | — | 25 | |
| o1-miniJudge Type=General-purpose generative judge2026.03 | 30.5 | 5.6 | 13.7 | 10.3 | 14.8 | 8.3 | 5.6 | 18.9 | 25.5 | 8.8 | 8.5 | 9.1 | 12.3 | |
| Selene-1-Mini-Llama-3.1-8BJudge Type=Fine-tuned generative judge2026.03 | 23.9 | 21.6 | 47.9 | 43.8 | 30 | 20.6 | 25.9 | 17.4 | 19.5 | 18.6 | 15.6 | 15.1 | 23.9 | |
| DeepSeek-R1Judge Type=General-purpose generative judge2026.03 | 22.5 | 10.6 | 17.6 | 11.6 | 9.2 | 6.7 | 10 | 8.9 | 13.7 | 15.1 | 11.4 | 7.9 | 11.8 | |
| Skywork-Reward-Llama-3.1-8B-v0.2Judge Type=Reward model judge2026.03 | 22.2 | 6.6 | 46.8 | 21.6 | 13.6 | 14.9 | 18.3 | 23.2 | 24 | — | — | — | 20.6 | |
| GRM-Llama3-8B-rewardmodel-ftJudge Type=Reward model judge2026.03 | 21.4 | 12.4 | 50.2 | 28.1 | 16.6 | 12.4 | 26.8 | 22.4 | 20.3 | — | — | — | 23 | |
| Skywork-Reward-V2-Llama-3.1-8BJudge Type=Reward model judge2026.03 | 15.5 | 3.6 | 20.4 | 6.3 | 13.7 | 4.7 | 7.9 | 15.2 | 21.1 | — | — | — | 11.4 | |
| Kimi-K2-InstructJudge Type=General-purpose generative judge2026.03 | 13 | 5.8 | 12.2 | 9 | 11.9 | 3 | 1.4 | 13.4 | 16.9 | 22.6 | 8.7 | 25.4 | 12.4 | |
| Skywork-Reward-V2-Qwen3-8BJudge Type=Reward model judge2026.03 | 12.5 | 3.5 | 22.2 | 7 | 10.5 | 6.5 | 7.8 | 19 | 18 | — | — | — | 11.4 | |
| Claude-3.7-SonnetJudge Type=General-purpose generative judge2026.03 | 11.2 | 3.1 | 22.1 | 5.9 | 8.1 | 5.5 | 1.7 | 10.3 | 12.7 | 19.5 | 11.9 | 9.6 | 10.2 |