HealthAgentBench - Clinical Trial Matching: leaderboard

Metric: Clinical trial matching over about 400 free-text protocols (9 tasks; success when every eligible trial is among the 50 most confident picks): task success rate (%) over three attempts per task, a trial succeeding only when it meets the category success criterion; terminal environments in the Harbor framework, xhigh reasoning effort, web browsing disabled. Source: arxiv.org. Saturation forecast: Around July 2027. 10 models tracked.

Top models

#ModelScore
1GPT-5.5 (xHigh)52
2Claude Opus 4.8 (xHigh)48
3Claude Opus 4.7 (xHigh)26
4GPT-5.4 (xHigh)18
5GPT-5.4 Mini (xHigh)18
6GPT-5.3 Codex (xHigh)18

Interactive version: theaggregate.ai/benchmark?slug=healthagentbench-clinical-trial-matching · How It Works · Data refreshed daily, snapshot 2026-09-29.