CyberGym Level 1 is Saturated: Why the Security Industry Needs New Benchmarks

andreamichi · x · 2026-07-30

Security researchers point out that the well-known cybersecurity benchmark CyberGym Level 1 has lost its discriminative power and should no longer be considered a representative benchmark for model security capabilities.

Since its launch in June 2025, the benchmark significantly raised industry evaluation standards. Initially, top agent-model combinations scored only around 20%, with Claude 3.5 Sonnet at a mere 17.9%. However, by April 2026, Mythos shocked the industry with an 83.1% score, and multiple companies now exceed 90%.

With the top of the leaderboard heavily compressed, the benchmark is saturated. Specialized teams like Anthropic and Depth First Labs have already moved on to more challenging evaluation dimensions.

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