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Automated vulnerability hunting with Google Gemini 3.5 Flash Cyber

Feeds.4Sysops •IT News • July 22, 2026

Google has introduced Gemini 3.5 Flash Cyber, a specialized, lightweight AI model fine-tuned to identify, validate, and patch software vulnerabilities. By leveraging the efficient 3.5 Flash architecture, the model enables security teams to perform continuous, large-scale code scanning without the high costs associated with larger, general-purpose models. It is integrated directly into Google’s CodeMender platform, which allows sub-agents to analyze numerous execution paths in parallel for comprehensive security coverage. Source

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Google Launches Gemini 3.5 Flash Cyber to Enhance Cybersecurity On July 21, 2026, Google introduced Gemini 3.5 Flash Cyber, a new AI model designed to identify and patch software vulnerabilities efficiently. This model is part of a limited-access pilot program available only to governments and trusted partners through CodeMender. Gemini 3.5 Flash Cyber is built on the Gemini 3.5 Flash framework and is touted as a cost-effective alternative to larger models like Anthropic's Mythos. The model was tested against the CyberGym benchmark, achieving competitive results by identifying unique vulnerabilities in software such as the V8 JavaScript Engine. This launch reflects Google's strategic push into the cybersecurity space amid increasing competition from rivals like Anthropic and OpenAI. Alongside this, Google also released Gemini 3.6 Flash and 3.5 Flash-Lite, focusing on improved performance and reduced costs. The new models aim to provide developers with efficient tools for high-volume workloads and cybersecurity tasks. 14 sources 55

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CodeMender Gemini 3.5 Flash Cyber