Open-source AI models closing gap with frontier systems on cyberattacks
Source: Gov
The AI Security Institute found that open-weight models now lag proprietary systems by only 4-7 months on offensive cybersecurity capabilities, down from 6-10 months earlier in 2025. This narrowing gap means malicious actors no longer need access to expensive frontier models to execute sophisticated cyber operations; they can increasingly replicate those techniques using freely available alternatives. The timeline compression shows how rapidly security-relevant capabilities transfer from closed to open ecosystems once achieved, forcing defenders and policymakers to reconsider where real-world risk concentrates.