Compare systems

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

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Systems comparedCodex GPT-5.5OpenCode GPT-5.5OpenCode GPT-5.3 CodexAdd system

These systems are tied: their pass rates are too close to separate them.

Side by side3 of 18 systems on the Vulnerability repair · Patch leaderboard

Each bar is the share of vulnerabilities where the system's patch passed the grader. The reasoning effort for these runs is not recorded.

RankSystemPass rate

Codex GPT-5.5

86.3%80.5–90.6

OpenCode GPT-5.5

85.3%78.3–90.8

OpenCode GPT-5.3 Codex

84.0%78.0–88.6

Leaderboard: Vulnerability repair, Patch · newest run 30 April 2026 · Open the leaderboard