CyberChainBench - Patch: leaderboard
Metric: Patch reward (%; 1 when the patched implementation makes the original attack revert and every replayed legitimate transaction still succeeds; 94 proxy-upgradeable cases; each model runs in its own agent harness (Claude Code, Codex, Gemini CLI or OpenCode) with the benchmark's on-chain MCP tools in a Harbor container, 30-minute budget, best validated attempt). Source: arxiv.org. Saturation forecast: Around August 2028. 10 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.5 (Codex) | 23.4 |
| 2 | Claude Opus 4.7 (Claude Code) | 21.3 |
| 3 | GPT-5.4 (Codex) | 19.1 |
| 4 | Claude Opus 4.6 (Claude Code) | 18.1 |
Interactive version: theaggregate.ai/benchmark?slug=cyberchainbench-patch · How It Works · Data refreshed daily, snapshot 2026-09-26.