Addendum to GPT-5.2 System Card: GPT-5.2-Codex

GPT‑5.2‑Codex is our most advanced agentic coding model yet for complex, real-world software engineering. A version of GPT‑5.2⁠ optimized for agentic coding in Codex, it includes further improvements on long-horizon work through context compaction, stronger performance on project-scale tasks like refactors and migrations, and improved performance in Windows environments—and significantly stronger cybersecurity capabilities.