SCDBench - Perfect Contracts: leaderboard

SCDBench (Qin, Song and Gervais, 2026) tests LLM decompilation of 600 verified Ethereum smart contracts in three difficulty tiers: from EVM assembly and function-selector hints the model must write Solidity that compiles and behaves like the original. Percentage of the 600 contracts decompiled perfectly, every public function recovered and consistent with no spurious function, zero-shot; higher is better.

Metric: Perfectly decompiled contracts (%; every public function recovered and consistent and no spurious function, of 600, zero-shot). Source: arxiv.org. Saturation forecast: Around 2029. 4 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.7 (High)5.5#75 (Claude Opus 4.7)
2GPT-5.3 Codex (High)5.5#114 (GPT-5.3 Codex)
3GLM-5 (Thinking)2.33#256 (GLM-5)
4GLM-5 (Non-reasoning)0.67#256 (GLM-5)

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

Interactive version: theaggregate.ai/benchmark?slug=scdbench-perfect-contracts · How It Works · Data refreshed daily, snapshot 2026-11-12.