GPAgentBench-2K - Diagnosis Accuracy: leaderboard

GPAgentBench-2K (Chen et al., 2026) runs LLMs zero-shot as general practitioners in interactive consultations with a simulated patient, built from 2,428 physician-validated primary-care cases and six clinical actions. Percentage of cases whose final diagnosis a GPT-5.4 judge marks correct against the ground truth; higher is better.

Metric: Diagnosis accuracy (%; final diagnosis judged correct by a GPT-5.4 judge against the ground truth; zero-shot GP agent with six clinical actions over 2,428 physician-validated primary-care cases, GPT-4o-mini patient simulator, at most 10 turns). Source: arxiv.org. Saturation forecast: Around February 2027. 21 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.770#75
2Gemini 3.1 Pro (Preview)66.8#91
3MiMo-V2.5-Pro66#274
4GPT-5.464.1#121
5DeepSeek V4 Flash63.9#254
6Qwen 3.7 Max63.1#142
7Claude Sonnet 4.661.7#158
8MiniMax-M2.760#519
9DeepSeek V4 Pro59.5#181
10Kimi K2.656.7#173
11GLM-5.154.2#175

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

Interactive version: theaggregate.ai/benchmark?slug=gpagentbench-2k-diagnosis-accuracy · How It Works · Data refreshed daily, snapshot 2026-11-12.