Legal Hallucination Detection Benchmark (no ex — leaderboard
Metric: F1 (%) - Agentic (self-reported). Source: benchmarklist.com. 6 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5 | 60.5 |
| 2 | Qwen 3.5 27B | 38 |
| 3 | GPT-OSS-120B | 34.4 |
| 4 | Gemini 2.5 Flash | 30.9 |
| 5 | Qwen 3 8B | 22.9 |
Interactive version: theaggregate.ai/benchmark?slug=legal-hallucination-detection-benchmark-no-ex · How the rankings work · Data refreshed daily, snapshot 2026-07-22.