Gemini 3.5 Flash Cyber
Released
Gemini 3.5 Flash Cyber is an AI model released by Google on Tuesday, Jul 21 2026, the same day as Gemini 3.5 Flash-Lite. Benchmark results (shown below) cover CyberGym.
Benchmarks
About
Gemini 3.5 Flash Cyber, announced July 21, 2026 alongside Gemini 3.6 Flash and 3.5 Flash-Lite, was Google's first cybersecurity-specialised Gemini model — built to find and patch critical software vulnerabilities, and deployed inside Google DeepMind's CodeMender agent. Google reported competitive performance on CyberGym, the benchmark for discovering and exploiting software weaknesses in sandboxed environments, but published no figure at the time; the 77.5% pass@1 it scored surfaced later, as the predecessor column in Gemini 3.8 Flash Cyber's launch chart.
Unlike its general-purpose siblings, Flash Cyber did not ship to the public API: access was restricted to a limited pilot program for governments and trusted partners, reflecting the dual-use sensitivity of automated vulnerability discovery. The release marked the first time Google spun a domain-specialised variant out of the Flash line, positioning defensive security as its own product track rather than a capability folded into the flagship.
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Frequently asked questions
Gemini 3.5 Flash Cyber was released by Google on Tuesday, Jul 21 2026.
Gemini 3.5 Flash Cyber was built by Google. Builds the Gemini family of models through Google DeepMind. Integrates AI across Google products.
Gemini 3.5 Flash Cyber reports 1 tracked benchmark score — CyberGym: 77.5%. Scores are the figures published at release by Google.
No. Gemini 3.5 Flash Cyber is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
Google's previous tracked release was Gemini 3.5 Flash-Lite on Jul 21 2026. It was followed by Gemini 3.7 Flash on Aug 13 2026.