Introducing Gemini 3.5 Flash Cyber
Today, we’re expanding our longtime efforts to better prepare defenders by introducing Gemini 3.5 Flash Cyber, our lightweight cybersecurity model built on top of 3.5 Flash and fine-tuned to find, validate, and patch vulnerabilities quickly and efficiently, making it more effective at these tasks than Gemini’s mainline Flash models.
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Key points
- Google has invested in cybersecurity for years, pioneering automated vulnerability discovery to secure the world’s codebases.
- Tools like CodeMender, our code security agent, can automatically find and fix critical software vulnerabilities.
- 3.5 Flash Cyber is particularly suitable for finding vulnerabilities where the agent has to scan a large codebase and analyze a large number of codepaths.
- Leveraging the low cost of 3.5 Flash Cyber by configuring CodeMender to call 3.5 Flash Cyber up to five times for a single, final report, the overall agent achieved competitive performance against significantly larger models on CyberGym.
Sources (1)
- [1]Introducing Gemini 3.5 Flash CyberGoogle DeepMind Blog · Jul 17, 03:00 PM
Today, we’re expanding our longtime efforts to better prepare defenders by introducing Gemini 3.5 Flash Cyber, our lightweight cybersecurity model built on top of 3.5 Flash and fine-tuned to find, validate, and patch vulnerabilities quickly and efficiently, making it more effective at these tasks than Gemini’s mainline Flash models.
Google has invested in cybersecurity for years, pioneering automated vulnerability discovery to secure the world’s codebases.
Extractive summary: sentences quoted from the sources.
Before this
- Jun 30, 2026Start building with Nano Banana 2 Lite and Gemini Omni Flash
- Jun 9, 2026Introducing Gemma 4 12B: a unified, encoder-free multimodal model
- Jun 9, 2026Powering the future of robotics in Europe
- May 17, 2026Introducing Gemini Omni
- May 16, 2026Strengthening Singapore’s AI Future: A New National Partnership
- May 15, 2026Gemini 3.5: frontier intelligence with action

