LiveFMBench: leaderboard

Formal specification is essential for rigorous program verification, yet writing correct specifications remains costly and difficult to automate. Although large language models (LLMs) and agents have shown promising progress, their true capabilities and failure modes remain unclear. We present the first systematic and contamination-aware study of LLM- and agent-based formal specification generatio

Metric: Pass@1 Before (Pre2025) (self-reported). Source: benchmarklist.com. Saturation forecast: Around January 2027. 11 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 235B A22B 2507 (Thinking)37.11#260 (Qwen 3 235B A22B 2507)
2Qwen 3 32B32.37#443
3Kimi K2 090530.44#288
4Qwen 3 Coder 480B A35B Instruct30.37#315
5DeepSeek V3 (0324)24.29#340
6Qwen 3 235B A22B 2507 Instruct15.83#300
7Llama 3.3 70B Instruct11.64#534

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=livefmbench · How It Works · Data refreshed daily, snapshot 2026-10-20.