RewardBench 2: leaderboard

Metric: Score (%). Source: huggingface.co. Saturation forecast: Around December 2026. 197 models tracked.

Top models

#ModelScore
1Gemini 2.5 Pro79.48
2Gemini 2.5 Flash77.67
3Gemini 2.5 Flash (Preview 04-17)77.21
4QRM-Gemma-2-27B76.67
5Claude Opus 4 (20250514)76.48
6INF-ORM-Llama3.1-70B76.48
7Llama 3.1 70B Instruct RM RB276.06
8Claude 3.7 Sonnet (20250219)75.39
9Skywork-Reward-Gemma-2-27B-v0.275.31
10URM-LLaMa-3.1-8B73.94
11LDL-Reward-Gemma-2-27B-v0.172.49
12GPT-4.172.32
13Llama-3.1-Tulu-3-70B-SFT-RM-RB272.2
14Claude Sonnet 4 (20250514)71.17
15QRM-Llama3.1-8B-v270.74

Interactive version: theaggregate.ai/benchmark?slug=rewardbench-2 · How It Works · Data refreshed daily, snapshot 2026-09-28.