complex-clinical-diagnosis-published-case-reports-rare-disease-challenging CLM-0555
observationsingle paperReviewed by AI

On complex clinical diagnosis from published case reports (rare disease and challenging cases), running several presenter-rebutter debater pairs on one backbone and synthesizing their revised hypotheses with an aggregator raises exact-match diagnostic accuracy and rated safety over the same model prompted once, while giving no measurable gain on multiple-choice clinical knowledge questions.

Capability: Getting more from several models than from one

Observed on

GPT-4o, GPT-3.5 and GPT-4o-mini backbones; 297 rare disease and 1,719 challenging published cases; accuracy graded by exact match to the reference diagnosis and safety by an LLM ju.

Model cards: GPT-4 · GPT-4o

Sources

  • Validated by: Top-1/top-3 exact-match accuracy and rubric safety rate against single-model prompting, a single model prompted to imitate the debate, MoA with the rebutter removed, and a MAC-style single-debater multi-round dialogue; on challenging cases GPT-4o rose from 14.50% to 25.34% top-1 accuracy and 63.46% to 76.14% top-1 safety, with McNemar p<0.01, and all three ablations scored below the full topology.. Measured on two case sets with paired one-sided McNemar tests and three ablation variants across three backbones; [truncated]
Reviewed by AI (Claude Opus 5)Last checked: 2026-10-24Evidence activity: not checked yet
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Related claims

Notes

Drafted from the paper by a model and filed unreviewed. Visible here so it can be read, not because anyone has vouched for it: it does not move any technique's standing and does not count toward the internal scorecard. Drafted confidence: medium. Falsifier as drafted: A matched-compute single-model baseline (same token spend, repeated sampling and self-critique) reaching the same accuracy and safety on these case sets, or the gain vanishing when the exact-match grader is replaced with a less brittle one.