HELM Robo-Reward-Bench - Robo Arena: leaderboard

The "Robo Arena" subtask of HELM Robo-Reward-Bench. Stanford HELM's Robo-Reward-Bench: vision-language models act as reward models over robot manipulation episodes, predicting task progress or success from video.

Metric: Absolute Error. Source: crfm.stanford.edu. Saturation forecast: Around July 2027. 25 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.5 (2026-04-23)0.77#24
2GPT-5.5 (xHigh)0.78#29 (GPT-5.5)
3GPT-5 Mini (2025-08-07)0.86#174
4Gemini 2.5 Pro0.94#153
5GPT-5.20.97#113
6GPT-51.03#104
7Gemini 3 Flash (Preview)1.06#84
8GPT-5.1 (2025-11-13)1.07#105
9Gemini 2.5 Flash Lite1.14#421
10Gemini 2.5 Flash1.19#242
11Gemini 3 Pro (Preview)1.23#66
12GPT-5 Nano1.29#428
13Llama 4 Maverick Instruct1.55#460
14Llama 4 Scout Instruct1.83#542

No result here: #4 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=helm-robo-reward-bench-robo-arena · How It Works · Data refreshed daily, snapshot 2026-10-23.