OpenAI Codex CLI Integration Integrates OpenAI's Codex CLI into Claude Code, enabling seamless AI collaboration between Claude and Codex for enhanced development workflows. Last Updated : December 2025 (GPT-5.2 Release) When to Use - Working with OpenAI models (GPT-5.2, GPT-5.1-Codex-Max, o3, o4-mini) - Code generation and refactoring with latest models - Git-aware workflows and PR reviews - Full automation with permission bypass - Reasoning-first development (o3 models, GPT-5.2 with xhigh reasoning) - Multimodal tasks (code + images) - Sandboxed execution environments - Long-context tasks (4…