Fugu-Cyber
3 published articles
Model Security: Specialists vs. Generalists
Why the Best General AI Model Keeps Losing to Narrower Ones on Security
Claude Opus 5's deliberately capped cybersecurity skills, Alibaba's in-session code review, and a new zero-query model-theft technique together show AI security fragmenting into specialized layers rather than converging on one trustworthy general model.
2026-07-28
Penetration Testing
Sakana's Fugu-Cyber finds the vulnerabilities Claude Opus 5 was designed to miss
Anthropic capped Claude Opus 5's security skills. Specialized models like Google's Gemini 3.5 Flash Cyber and Sakana's Fugu-Cyber outperform it in vulnerability discovery. A case for testing alternatives before renewing enterprise licenses.
2026-07-26
Cyber Defense
Sakana's new cyber agent matches frontier models but tells you not to trust it alone
Sakana AI released Fugu-Cyber, a multi-agent orchestration model matching frontier cyber models on benchmarks. The company argues raw model access alone cannot fix enterprise security without human expertise and verification workflows.
2026-07-21