VISTA - Behavior: leaderboard
Metric: Mean behavior score (0-1): whether each annotated interaction triggers the expected visible behavior, agent builds and launches a multi-page web app from the product spec for 10 tasks (128 pages, 3,253 annotated interactions), mean over the five prompt-information conditions C0 to C4 (C1 averaged over its three stacks), Playwright-driven interaction evaluator; higher is better. Source: arxiv.org. Saturation forecast: Around June 2028. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 | 0.33 |
| 2 | GPT-5.5 | 0.28 |
Interactive version: theaggregate.ai/benchmark?slug=vista-behavior · How It Works · Data refreshed daily, snapshot 2026-10-07.