Compare systems

Pick up to five systems from any leaderboard and see their pass rates side by side.

Leaderboard

Paired view

Systems comparedClaude Code Opus 4.7OpenCode GPT-5.5OpenCode GPT-5.3 CodexAdd system

Side by side3 of 3 systems on the Attack versus defend leaderboard

Each system has two bars on one set of vulnerabilities: the share it exploited when attacking, and the share it fixed when defending. This is a paired view of the April 2026 vulnerability repair data. The reasoning effort for these runs is not recorded.

SystemAttack · Defend

Claude Code Opus 4.7

79.9% · 57.4%defend minus attack -22.5 pp, -30.8 to -13.9

OpenCode GPT-5.5

96.2% · 85.2%defend minus attack -11.0 pp, -16.5 to -6.2

OpenCode GPT-5.3 Codex

77.0% · 83.7%defend minus attack +6.7 pp, -0.3 to +13.8

Leaderboard: Attack versus defend · newest run 30 April 2026 · this leaderboard is not ranked · Open the leaderboard