Hinoki Offensive One (HO1) is a cybersecurity AI model designed for offensive-security work that supports defensive testing and research. Hinoki presents it as accessible through supported developer tools, including Claude Code, OpenAI Codex, OpenCode, Visual Studio Code, and Cursor, so security professionals can use it within coding and agent workflows. The product site describes multi-step task execution and evaluations on cybersecurity benchmarks. HO1 is intended for security researchers, penetration testers, and defenders conducting authorized assessments, vulnerability research, and security testing. Its offensive capabilities make clear authorization, safeguards, and responsible-use policies important parts of deployment. Hinoki also publishes comparisons with other cybersecurity-focused and general-purpose AI models to help technical users assess model behavior for security-related tasks.