Hinoki Offensive One, the first open access cyber model

Hinoki Security released Hinoki Offensive One (HO1), which it calls the first open-access offensive cyber model, scoring 88.1% on CyberGym — 2.5 points above OpenAI's dedicated GPT-5.5-Cyber. Hinoki says HO1 works through offensive security tasks turn by turn within a user-set policy where GPT-6.1-Sol refuses outright, and the model is usable through Claude Code, Codex, OpenCode, VS Code and Cursor. The release puts a gated-class cyber capability in unrestricted public hands, raising dual-use questions for defenders and attackers alike.

Afrontiercyber AIlab. https://hinoki.security/beta Democratizing offensive cyber for better defense. Meet Hinoki Offensive One, the first open-access cyber model. Use HO1 with Claude Code, Codex, OpenCode, VS Code, Cursor https://app.hinoki.security/sign-up HO1 against the frontier runs HO1 runs tasks that other models refuse. Hinoki Offensive One works through the real task turn by turn within the policy you set. GPT-6.1-Sol refuses outright. Transcript Scores like a gated cyber model. Open to anyone. On CyberGym, HO1 scores 88.1%, 2.5 points above OpenAI’s dedicated GPT-5.5-Cyber. 1. HO10.0% 2. GPT-5.5-Cyber0.0% 3. GPT-5.6-Sol0.0% 4. DeepSeek-V4-Pro0.0% 5. Claude Mythos Preview0.0%