LexKairos (Thinking Mode) - Peremptory Period Reasoning: leaderboard
Metric: Accuracy (%; 180 items: decide whether a peremptory period has lapsed under the applicable statute; thinking mode, built-in reasoning enabled at high effort with the vanilla prompt; temperature 0, 8,000 output tokens). Source: arxiv.org. Saturation forecast: Around March 2027. 5 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 3 Flash (High) | 74.44 |
| 2 | GPT-5.4 (High) | 69.44 |
| 3 | DeepSeek V4 Flash (High) | 64.44 |
| 4 | Qwen 3.5 9B (Thinking) | 57.22 |
Interactive version: theaggregate.ai/benchmark?slug=lexkairos-thinking-mode-peremptory-period-reasoning · How It Works · Data refreshed daily, snapshot 2026-09-29.