CAP (Cross-Site Browser Tasks) - Perception: leaderboard
The perception score of CAP (Macau University of Science and Technology, FellouAI and others, 2026): the mean score of checkpoints that need reading dynamically rendered visual content such as charts, values and overlapping elements, over a fixed 198-task set of cross-site browser tasks. Percent, higher is better.
Metric: Perception score (%; mean leaf score over the perception checkpoints such as reading charts, values and overlapping elements; a fixed 198-task evaluation set of CAP cross-site browser tasks on live websites (the benchmark holds 420 tasks over 108 websites in 24 domains); each task becomes a hierarchical rubric tree of execution, perception and format checkpoints, scored by a GPT-4o judge agent with URL-grounded verification; Browser-Use agent framework with default configuration and at most 50 reasoning-action steps). Source: arxiv.org. Saturation forecast: Around August 2027. 3 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | DeepSeek V4 Flash | 34.2 | #258 |
| 2 | Claude Sonnet 4.5 | 32 | #250 |
| 3 | GPT-5 | 23 | #167 |
No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.
Interactive version: theaggregate.ai/benchmark?slug=cap-cross-site-browser-tasks-perception · How It Works · Data refreshed daily, snapshot 2026-11-13.