LexKairos - Effective Date Inquiry: leaderboard

The Effective Date Inquiry sub-task of LexKairos (Tsinghua University, 2026): generate the effective date of a named Chinese statute. Accuracy in percent over 485 items in the vanilla setting (direct answer); higher is better.

Metric: Accuracy (%; 485 items: generate the effective date of a named Chinese statute; 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 February 2027. 8 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3 Flash (Minimal)87.84#164 (Gemini 3 Flash)
2DeepSeek V4 Flash (Non-reasoning)83.51#258 (DeepSeek V4 Flash)
3GPT-5.4 (Non-reasoning)78.56#123 (GPT-5.4)
4DeepSeek R177.73#473
5Qwen 3.5 9B (Non-reasoning)44.95#803 (Qwen 3.5 9B)
6Llama 3.1 8B6.6#4861

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

Interactive version: theaggregate.ai/benchmark?slug=lexkairos-effective-date-inquiry · How It Works · Data refreshed daily, snapshot 2026-11-13.