Synthetic Hospital - Specialty Summarization: leaderboard

Synthetic Hospital (Park, Chen and Dettmers, 2026) is an open synthetic longitudinal EHR benchmark built from medical-education material, with labels grounded in ICD-10-CM, SNOMED CT and LOINC. In this task the model summarizes the chart for a target specialty, measured by specialty-relevance F1 in percent, scored against graph-derived references on the 200-patient public split with one prompting strategy locked per task; higher is better.

Metric: Specialty-relevance F1 (%; specialty-conditioned summary scored against graph-derived specialty-relevant findings, zero-shot; public split of 200 synthetic longitudinal patients (1,268 in all, built from USMLE-style questions with ontology-grounded labels); single-turn, one prompting strategy locked per task for every model; graph-derived deterministic scoring). Source: arxiv.org. Saturation forecast: Around February 2027. 10 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.668#100
2GLM-561.4#256
3GPT-5.359.5#194
4Kimi K2.5 (Thinking)59#252 (Kimi K2.5)
5Qwen 3.5 397B A17B54.8#242
6DeepSeek V3.252.3#403
7Gemma 3 27B41.8#1638
8Llama 4 Scout36.5#1787

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

Interactive version: theaggregate.ai/benchmark?slug=synthetic-hospital-specialty-summarization · How It Works · Data refreshed daily, snapshot 2026-11-12.