RoboStressBench - State Understanding: leaderboard

RoboStressBench (2026) tests vision-language models on embodied-scene images under physically grounded visual stress (dark, transparent or specular materials, extreme viewpoints, occlusion and clutter, over- and under-exposure). This board is accuracy in percent on its 633 object-state multiple-choice questions, with greedy decoding and at most 64 new tokens; higher is better.

Metric: Accuracy (%) on the 633 object-state-understanding multiple-choice questions, exact match on the predicted option, greedy decoding with at most 64 new tokens (API models: temperature 0, 64 output tokens), one unified instruction template; images of embodied scenes under physical visual stress (material, viewpoint, lighting, geometry); higher is better. Source: arxiv.org. Saturation forecast: Not forecast. 16 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3.6 27B67.1#341
2Qwen 3.6 35B A3B67.1#462
3Qwen 3.5 27B63.3#359
4Qwen 3.5 35B A3B62.9#482
5Qwen 3.5 4B59.6#1175
6Qwen 3.5 9B58.9#803
7Gemini 3.1 Pro (Preview)41.6#94
8Molmo2-8B39.2#1483
9GPT-5.538.9#49

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=robostressbench-state-understanding · How It Works · Data refreshed daily, snapshot 2026-11-13.