CaptchaBench: leaderboard
Metric: Task success rate (%; mean of eight CAPTCHA tasks, 200 test episodes each). Source: arxiv.org. Saturation forecast: Around 2029. 9 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Sonnet 4 | 47.4 |
| 2 | O3 | 46.9 |
| 3 | Claude 3.7 Sonnet | 43.9 |
| 4 | GPT-5 | 33.6 |
Interactive version: theaggregate.ai/benchmark?slug=captchabench · How It Works · Data refreshed daily, snapshot 2026-09-25.