WebIGBench (Direct Prompt) - Action Completion Rate: leaderboard

Partial-credit score of WebIGBench (Wu et al., 2026) webpage generation under the Direct prompt (screenshots and textual instructions): the share of each page's reference interaction steps that an LLM matcher aligns with a step the UI agent executed on the generated page, averaged over 103 real-site pages. Percent, higher is better; temperature 0.

Metric: Action completion rate (%; share of each page's reference actions matched to an executed action on the generated page, mean over 103 webpages, screenshots and textual instructions). Source: arxiv.org. Saturation forecast: Around March 2027. 6 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 2.5 Pro75.4#262
2Qwen-VL-Max61.64#1226
3GPT-556.36#163
4Grok 448.65#306
5GLM-4.5V46.55#739

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

Interactive version: theaggregate.ai/benchmark?slug=webigbench-direct-prompt-action-completion-rate · How It Works · Data refreshed daily, snapshot 2026-11-12.