PlaceboBench: leaderboard
Medical-domain hallucination benchmark with labeled model answers to pharmaceutical questions grounded in EMA product information.
Metric: Non-Hallucination Rate (imported). Source: huggingface.co. Source: benchmarklist.com. 7 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Gemini 3 Pro (Preview) | 73.91 | #66 |
| 2 | GPT-5.2 | 63.24 | #110 |
| 3 | Claude Sonnet 4.5 | 62.32 | #142 |
| 4 | Gemini 3 Flash (Preview) | 44.93 | #82 |
| 5 | GPT-5 Mini | 39.13 | #186 |
| 6 | Claude Opus 4.6 | 36.23 | #63 |
Interactive version: theaggregate.ai/benchmark?slug=placebobench · How It Works · Data refreshed daily, snapshot 2026-10-20.