LexKairos - Effective Version Identification: leaderboard
Metric: Accuracy (%; 452 items: generate the statute title and version tag in force at a given date; vanilla setting, the model answers directly without extra reasoning steps (thinking disabled where the model allows it); temperature 0, 8,000 output tokens). Source: arxiv.org. Saturation forecast: Around December 2026. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 (Non-reasoning) | 59.96 |
| 2 | Gemini 3 Flash (Minimal) | 59.51 |
| 3 | DeepSeek R1 | 47.57 |
| 4 | DeepSeek V4 Flash (Non-reasoning) | 45.58 |
| 5 | Qwen 3.5 9B (Non-reasoning) | 40.04 |
| 6 | Llama 3.1 8B | 12.83 |
Interactive version: theaggregate.ai/benchmark?slug=lexkairos-effective-version-identification · How It Works · Data refreshed daily, snapshot 2026-09-29.