RewardBench Chat Hard — leaderboard
Metric: Accuracy (%). Source: huggingface.co. 178 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Skywork-Reward-Gemma-2-27B-v0.2 | 89.91 |
| 2 | Gemini 1.5 Pro (0514) | 80.59 |
| 3 | Gemini 1.5 Pro (Sept) | 76.97 |
| 4 | ArmoRM-Llama3-8B-v0.1 | 76.75 |
| 5 | GPT-4o (2024-08-06) | 76.1 |
| 6 | GPT-4 Turbo | 75.44 |
| 7 | Llama 3.1 405B Instruct | 74.56 |
| 8 | GPT-4 Preview (0125) | 74.34 |
| 9 | Claude 3.5 Sonnet (20240620) | 74.01 |
| 10 | GPT-4o (2024-05-13) | 70.39 |
| 11 | Llama 3.1 70B Instruct | 70.18 |
| 12 | Qwen 1.5 14B Chat | 70.18 |
| 13 | Qwen 1.5 7B Chat | 69.08 |
| 14 | SOLAR-10.7B-Instruct-v1.0 | 68.64 |
| 15 | Qwen 1.5 72B Chat | 66.01 |
Interactive version: theaggregate.ai/benchmark?slug=rewardbench-chat-hard · How the rankings work · Data refreshed daily, snapshot 2026-07-22.