MC-CXR - Misleading Prior Report: leaderboard

Accuracy on MC-CXR (Seoul National University, 2026) when the chest X-ray comes with a prior radiology report rewritten toward a plausible wrong finding; the model must still name the image finding among 12 CheXpert labels. Percent, higher is better.

Metric: Accuracy under misleading context (%; the image plus a prior report rewritten toward a plausible wrong finding; 240 radiologist-reviewed MIMIC-CXR cases, one current chest X-ray and a fixed target finding each; zero-shot constrained single-letter answer from 12 CheXpert labels (chance about 8.3%), invalid answers scored wrong; greedy or temperature-0 decoding). Source: arxiv.org. Saturation forecast: Around 2030. 10 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.5 Flash (Minimal)21.7#101 (Gemini 3.5 Flash)
2Qwen 3.5 9B17.5#803
3MedGemma 1.5 4B13.3#2562
4InternVL3-8B11.2#1688
5Claude Opus 4.711.2#79
6Phi-4 Multimodal Instruct7.1#3882
7Llama 3.2 11B Instruct4.6#4991
8Gemma 3 12B (IT)3.8#1837

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

Interactive version: theaggregate.ai/benchmark?slug=mc-cxr-misleading-prior-report · How It Works · Data refreshed daily, snapshot 2026-11-13.