StressWeb: leaderboard

Metric: Checkpoint pass rate (%): share of predefined task checkpoints (milestones such as reaching a target page or completing required fields) that the agent's run passes, averaged over the clean environment and the six perturbed environments, on 149 tasks over 10 generated websites, a multimodal agent driving a Playwright controller from screenshots, the page DOM and its action history (100-step budget), checkpoints verified by task-specific scripts on the recorded DOM states; higher is better. Source: arxiv.org. Saturation forecast: Around October 2027. 8 models tracked.

Top models

#ModelScore
1O4 Mini50.1
2Gemini 2.5 Pro48.1
3Claude Opus 4.543.7
4Claude Sonnet 4.543.6
5GPT-5.241.7
6Qwen 3 VL 235B A22B (Thinking)40.3
7GLM-4.6V35.2
8Claude Haiku 4.534.6

Interactive version: theaggregate.ai/benchmark?slug=stressweb · How It Works · Data refreshed daily, snapshot 2026-10-07.