Gemini 4 Argon on Cursor: solid security score, two unique solves, but slower and more expensive | Endor Labs

Summary

Gemini 4 Argon, released by Google on October 13, 2026, ties Fable 5 for the top SecPass score on the Cursor leaderboard at 29%, with a stronger 78.8% FuncPass, and uniquely secures two tasks: a path traversal defense in SABnzbd and a credential-logging fix in OpenStack Nova. It is also the slowest and most expensive recent frontier combo tested, at a 14-minute median per task and $765 total.

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